ENACTED 12/15/1998

ORDINANCE NO. O98-1445

An ordinance amending Chapters 2, 10 and 16 of the Metropolitan Code of Laws by adopting the latest editions of the NFPA Fire Codes, the Standards Codes (Building, Gas, Mechanical), the Model Energy Code with amendments thereto; also, to modify the Housing Code and the Fire Zone Map as referenced by the Building Code.

Section 1. Section 2.20.080B of the Metropolitan Code of Laws is hereby amended by deleting the section and substituting the following:

"B. No officer or employee of the department of codes administration shall be financially or otherwise interested in the furnishing of any labor, materials or appliances for the installation, alteration, repair or maintenance of any electrical, gas, mechanical plumbing installation or system, or in the making of any plans or the preparation of any specifications therefor, except in such instances where such officer or employee is the sole legal owner of the building or structure where such installation is to be made."

Section 2. Section 2.80.060 of the Metropolitan Code of Laws is hereby amended by deleting the section and substituting the following:

"2.80.060 Rules and regulations for conduct of business--Meetings and hearings. The board of fire and building code appeals shall adopt such rules and regulations as it may deem necessary to conduct its business. The board, in open meetings, shall hear all appeals, under this chapter and Chapters 10.64 Articles I & 11, 16.04, 16.08 and 16.28 through 16.56 of this code, from decisions and rulings of the director of codes administration and/or the metro fire marshal. The board shall meet at regular monthly intervals. The day of the monthly meeting shall be determined by the board in it's rules and regulations."

Section 3. Section 2.80.080 of the Metropolitan Code of Laws is hereby amended by deleting the section and substituting the following:

'2.80.080 Variance granting authority.

The board of fire and building code appeals, when so appealed to and after a hearing may vary the application of any provision of this chapter and Chapters 10.64 Articles I & 11, 16.04, 16.08 and 16.28 through 16.56 to any particular case when, in its opinion, the strict enforcement thereof would do manifest injustice and would be contrary to the spirit and purposes of this chapter and Chapters 10.64 Articles I & 11, 16.04, 16.08 and 16.28 through 16.56 of this code, or public interest, and when in its opinion the interpretation of the director of codes administration and/or the metro fire marshal should be modified."

Section 4. Section 2.80.090 of the Metropolitan Code of Laws is hereby amended by deleting the section and substituting the following:

"2.80.090 Appeal procedures--Filing fee.

Whenever the director of codes administration and/or the metro fire marshal shall reject or refuse to approve the mode or manner of construction proposed to be followed or materials to be used in the erection or alteration of a building or structure, or when it is claimed that the provisions of this chapter and Chapters 10.64 Articles I & 11, 16.04, 16.08 and 16.28 through 16.56 do not apply, or that an equally good or more desirable form of construction can be employed in any specific case, or when it is claimed that the true intent and meaning of this chapter and Chapters 10.64 Articles I & 11, 16.04, 16.08 and 16.28 through 16.56 or any of the regulations hereunder have been misconstrued or wrongly interpreted, the owner of such building or structure, or his duly authorized agent, may appeal from the decision of the director of codes administration and/or the metro fire marshal to the board of fire and building code appeals. Notice of appeal shall be in writing and filed within thirty days after the decision is rendered by the director and/or metro fire marshal. A fee of fifty dollars shall accompany such notice of appeal."

Section 5. Section 2.80.110A & 2.80.110D of the Metropolitan Code of Laws is hereby amended by deleting the section and substituting the following:

"2.80.110 Effect of board decisions.

A. A decision of the board of fire and building code appeals varying the application of any provision of this chapter or Chapters 10.64 Articles I & II, 16.04, 16.08 and 16.28 through 16.56 of this code or modifying an order of the director of codes administration and/or metro fire

marshal shall be by resolution of the board, which shall specify in what manner such variations or modifications shall be made, the conditions upon which they are made, and the reasons therefor.

D. If a decision of the board reverses or modifies a refusal, order or disallowance of the director of codes administration and/or metro fire marshal, or varies the application of any provisions of this chapter and Chapters 10.64 Articles I & 11, 16.04, 16.08 and 16.28 through 16.56 of this code, the director of codes administration and/or the metro fire marshal shall immediately take action concerning such decision or immediately enforce the decision of the board."

FIRE CODES

Section 6. Section 10.64.010 of the Metropolitan Code of Laws is hereby amended by deleting the section and substituting the following:

"Article 1. Code Adoption

10.64.010 Fire prevention code adopted

The metropolitan government adopts the 1997 Fire Prevention Code of the National Fire Protection Association (Fire Prevention Code), which references the 1997 edition of the printed volumes of the National Fire Code, as amended in this chapter, to be applicable throughout the metropolitan government. A copy of such fire prevention code is attached to the ordinance codified in this section and made a part hereof, the same as if copied verbatim herein."

Section 7. Section 10.64. of the Metropolitan Code of Laws is hereby amended by adding a new section:

"10.64.015 Amendments to the fire codes."

Section 8. Section 10.64.015 of the Metropolitan Code of Laws is hereby amended by adding a new section A:

"A. Section 1-4 of the 1997 edition of the NFPA 1, Fire Prevention Code, which is a part of the National Fire Code adopted by reference herein, is hereby amended by adding the following new section:

1.4.17 The provisions of this code do not apply to one and two family dwellings in the normal use or maintenance thereof.

Exception No.l: This code shall apply whenever the activity or use of such dwelling creates a fire hazard to life or property.

Exception No.2: Where provisions of annexed codes specifically apply to one or two- family dwellings."

Section 9. Section 10.64.015 of the Metropolitan Code of Laws is hereby amended by adding a new section B:

"B. The 1997 edition of NFPA 1, which is a part of the National Fire Code, adopted by reference herein, is amended by deleting subsection 7-1.3.2.2 and substituting the following:

7-1.3.2.2 The entire building shall be required to be protected by an approved, automatic sprinkler system within 9 years of the adoption of this code."

Section 10. Section 10.64.015 of the Metropolitan Code of Laws is hereby amended by adding a new section C:

"C. Section 1-7 of the 1997 Fire Prevention Code is deleted in its entirety and the following paragraph is substituted in lieu thereof:

The Board of Appeals created and empowered to act on all appeals under this Metropolitan Fire Prevention Code shall be the Metropolitan Board of Fire and Building Code Appeals (Board) as established and provided for in the Metropolitan Code of Laws, Chapter 2.80 and Section 16.08.010. The Board shall hear all appeals for variances in or interpretations of this Metropolitan Fire Prevention Code by the Fire Marshal of the Metropolitan Government. When acting under this Metropolitan Fire Prevention Code, the Board shall transmit its decisions to the Fire Marshal."

Section 11. Section 10.64.015 of the Metropolitan Code of Laws is hereby amended by adding a new section D:

"D. Section 3-1 of the 1997 edition of NFPA 1, The Fire Prevention Code which is a part of the National Fire Code adopted by reference herein is amended by adding the following new section:

3-1.4.1 No person shall knowingly maintain a fire hazard."

Section 12. Section 10.64.015 of the Metropolitan Code of Laws is hereby amended by adding a new section E:

"E. Section 3-2 of the 1997 edition of the NFPA 101, Life Safety Code, which is a part of the National Fire Code adopted by reference herein, is amended by adding the following definition at the end of Section 3-2:

Bed and breakfast homestay. A private home, inn or other unique residential facility located in a structure of historical significance as defined in Tennessee Code Annotated Section 68-14-503(3), offering bed and breakfast accommodations and one (1) daily meal and having less than four (4) guest rooms furnished for pay, with guests staying not more than fourteen (14) days, and where the innkeeper resides on the premises or property, or immediately adjacent to it. Guest rooms shall be established and maintained distinct and separate from the innkeeper's quarters."

Section 13. Section 10.64.015 of the Metropolitan Code of Laws is hereby amended by adding a new section F:

"F. The 1997 edition of NFPA 101, Life Safety Code, which is a part of the National Fire Code, adopted by reference herein, is amended by deleting section 5-2.8.1.2 in its entirety and substituting the following:

5-2.8.1.2 Fire escape stairs shall not constitute any of the required means of egress."

Section 14. Section 10.64.015 of the Metropolitan Code of Laws is hereby amended by adding a new section G:

"G. The 1997 edition of NFPA 101, Life Safety Code, which is a part of the National Fire Code, adopted by reference herein, is amending section 7-7.2.1 by creating a new section.

7-7.2.1.1 Fire Pumps used in fire protection shall have the following signals transmitted to an approved Central Station or an approved Proprietary Alarm receiving Facility:

1) Pump run.

2) Phase reversal.

3) Power to the pump.

4) Main Water flow."

Section 15. Section 10.64.015 of the Metropolitan Code of Laws is hereby amended by adding a new section H:

"H. The 1997 edition of NFPA 101, Life Safety Code, which is a part of the National Fire Code, adopted by reference herein, is amended by deleting section 5-2.2.4.6 in its entirety and substituting the following.

5-2.2.4.6 Guard Details.

[a] The height of guards required in 5-2.2.4.1 shall be measured vertically to the top of the guard from the surface adjacent thereto.

[b] Guards shall be at least 42in. (107 cm) high.

1. Existing guards within dwelling units shall be at least 36in (91 cm) high.

4. Guardrails on open or glazed sides of stairs and ramps shall be permitted

to be 38 inches (965mm) high. Guardrails exceeding 38 inches (965mm)

high shall have a handrail located not less than 34 inches (864mm) nor more than 38 inches (965mm) above the leading edge of a tread.

5. The top element of a guard at the inside open or unenclosed edge of any intermediate stairway landing where the stairs reverse direction may be at the same height as the stairway handrails when the horizontal distance between the stair flights is 1 ft (305mm) or less and then a continuous handrail as specified in 5-2.2.4.2 and 5-2.2.4.3 is provided.

[c] Open guards shall have intermediate rails or an ornamental pattern such that a sphere 4in. (10.1 cm) in diameter shall not pass through any opening up to a height of 38 in. (96 cm).

1. the triangular openings formed by the riser, tread, and bottom element of a guardrail at the open side of a stair shall be of such size that a sphere 6 in.

2. In detention and correctional occupancies, in industrial occupancies, and in storage occupancies, the clear distance between intermediate rails measured at right angles to the rails shall not be more than 21 in. (53.3 cm).

3. Approved existing open guards."

Section 16. Section 10.64.015 of the Metropolitan Code of Laws is hereby amended by adding a new section 1:

"1. The 1997 edition of NFPA 101, Life Safety Code, which is a part of the National Fire Code, adopted by reference herein, is amended by deleting section 16-3.1.1 in its entirety and substituting the following.

16.3.1.1 Every stairway, elevator shaft, and other vertical opening shall be enclosed or protected in accordance with 6-2.4.

Exception No. 1: Unprotected vertical openings connecting not more than three floors in accordance with 6-2.4.5 shall be permitted.

Exception No.3: Convenience openings in accordance with 6-2.4.8 shall be permitted."

Section 17. Section 10.64.015 of the Metropolitan Code of Laws is hereby amended by adding a new section J:

"J. The 1997 edition of NFPA 101, Life Safety Code, which is a part of the National Fire Code, adopted by reference herein, is amended by deleting section 18-3.1.1 in its entirety and substituting the following:

18.3.1.1 Every stairway, elevator shaft, and other vertical opening shall be enclosed or protected in accordance with 6-2.4.

Exception No .l: Convenience openings in accordance with 6-2.4.8 shall be permitted.

Exception No. 3: There shall be no unprotected vertical openings in any building or fire section with only one exit.

Exception No. 4: In buildings protected throughout by an approved, supervised sprinkler system in accordance with 18-3.5, unprotected vertical openings connecting not more than three floors in accordance with 6-2.4.5 shall be permitted."'

Section 18. Section 10.64.015 of the Metropolitan Code of Laws is hereby amended by adding a new section K:

" K. The 1997 edition of NFPA 101, Life Safety Code, which is a part of the National Fire Code, adopted by reference herein, is amended by creating a new subsection 20-1.1.3.

20-1.1.3 Bed and breakfast homestays, as defined in Chapter 3, shall not be regulated under this chapter but shall be required to meet the requirements of Chapter 21, in particular Section 21-3.3, Detection, Alarms and Communications Systems."

Section 19. Section 10.64.015 of the Metropolitan Code of Laws is hereby amended by adding a new section L:

"L. The 1997 edition of NFPA 101, Life Safety Code, which is a part of the National Fire Code, adopted by reference herein, is amending section 20-1.1 by creating a new section.

20-1.1.3 Bed and breakfast Homestays, as defined in Chapter 3, shall not be regulated under this chapter but shall be required to meet the requirements of Chapter 21, in particular Section 21-3.3, Detection, Alarms and Communications Systems."

Section 20. Section 10.64.015 of the Metropolitan Code of Laws is hereby amended by adding a new section M:

"M. Section 5-3.2(f) of the 1996 edition of NFPA 14, Standard for the Installation of Standpipe Hose Systems which is a part of the National Fire Code adopted by reference herein, is hereby amended by deleting the section and substituting the following:

(f) Additional hose outlets shall be required so that all portions of each story of the building are within 30ft. of a nozzle attached to not more than 100ft. of hose."

Section 21. Section 10.64.015 of the Metropolitan Code of Laws is hereby amended by adding a new section N:

"N. Section 5-3.4 of the 1996 edition of NFPA 14, Standard for the Installation of Standpipe Hose Systems which is a part of the National Fire Code adopted by reference herein, is hereby amended by deleting the section and substituting the following:

5-3.4 Class III Systems. Class III systems shall be provided with hose connections as required for Class I system."

BUILDING CODE

Section 22. Section 16.08.010 A of the Metropolitan Code of Laws

is hereby amended by deleting the section and substituting the following:

"A. 1997 Edition of the Standard Building Code, Sections 101.1 through

101.4.5, 101.4.7 through 101.4.10, Section 102.5, Sections 106.3 through 107,

Section 110, Sections 201.1 through 3503 inclusive and Appendices A, D, F,

G and H."

Section 23. Section 16.08.010 D of the Metropolitan Code of Laws is hereby amended by deleting the section and substituting the following:

"D. 1995 Edition of the CABO/Model Energy Code, Sections 1.01.1 through 605 inclusive, Chapter 8, and Appendix. This code edition shall apply to 1 & 2 family Dwellings and all other residential building 4 stories or less." 1992 Edition of the CABO/Model Energy Code, Sections 1.01.1 through 502.1.4 inclusive, Sections 502.3 through 503.8.2, Sections 503.8.3.3 through 505.4, Chapter 7, and Appendix . This code edition shall apply to residential building over 4 stories and all other buildings or structures."

Section 24. Section 16.08.012 of the Metropolitan Code of Laws is hereby amended by substituting "1997" in place of "1994" used throughout the section.

Section 25. Section 16.08.012A(2) of the Metropolitan Code of Laws is hereby amended by deleting the definition of "Family" and substituting the following:

"FAMILY -- is an individual, two or more persons related by blood, marriage or law, or a group of not more than any five unrelated persons living together in a dwelling unit."

Section 26. Section 16.08.012C of the Metropolitan Code of Laws is hereby amended by deleting the section and substituting the following:

"C. Section 503.2.3.3 Exception 2 of the 1997 Edition of the Standard Building Code is hereby amended by deleting the section and substituting the following:

2. In sprinkled buildings, a mezzanine having two or more means of egress need not open into the room in which it is located if the areas are of the same occupancies and if at least one of the means of egress provides direct access to an exit at the mezzanine level. The mezzanine can not exceed one third of the open area of the room or space in which is located."

Section 27. Section 16.08.012D of the Metropolitan Code of Laws is hereby amended by deleting the section and substituting the following:

"D. Section 503.2.4 of the 1997 Edition of the Standard Building Code is hereby amended by deleting the section and substituting the following:

503.2.4 Basements. A basement of a building shall not count as a story, when applying Table 500 for allowable building height, if the upper surface of the first floor above such basement complies with all of the following:

1. is less than 7ft (2134 mm) above average grade,

2. is less than 7ft (2134 mm) above finished ground level for more than 50 percent of the perimeter of the basement, and

3. is less than 12ft (3658mm) above finished ground level around the entire basement perimeter."

Section 28. Section 16.08.012 E of the Metropolitan Code of Laws is hereby amended by deleting the section and substituting the following:

"E. Table 600 of the 1997 Edition of the Standard Building Code is amended by adding the following new footnote:

r. Mini-warehouse buildings of IV construction may have unlimited exterior unprotected wall openings when buildings are spaced a minimum of twenty (20) feet apart and/or twenty (20) feet from a property line."

Section 29. Section 16.08.012 F of the Metropolitan Code of Laws is hereby amended by deleting the section and substituting the following:

"F. Table 704.1 of the 1994 Edition of the Standard Building Code is amended by deleting the following words:

Storage, Moderate Hazard Sl -- 3 hour Storage

Low Hazard S2 -- 2 hour"

and substituting

"Storage, Low and Moderate Hazard -- 2 hour."

Section 30. Section 16.08.012 G of the Metropolitan Code of Laws is hereby amended by deleting the section and substituting the following:

"G. Section 704.2.1 of the 1997 Edition of the Standard Building Code is amended by adding a new section as follows:

704.2.1.6. In sprinkled buildings of business occupancy a wall, either full or partial glass, forming a smoke partition may be used in lieu of a required one (1) hour fire resistant wall (tenant separation and corridor walls only) where automatic sprinklers are spaced six (6) feet or less along both sides of the separation wall and not more than one (1) foot away from the glass and so designed that the entire surface of the glass is wet upon activation of the sprinkler system. The wall glass shall be in a gasketed steel frame so installed that the framing system may deflect without breaking (loading) the glass before the sprinkler system operates."

Section 31. Section 16.08.012 I of the Metropolitan Code of Laws is hereby amended by deleting the section and substituting the following:

"I. 704.2.4 Exit Access corridors within tenant spaces. Fire resistance rating of the exit access corridors shall be in accordance with Table 704.2.4."

Notes 1. Corridors need not be rated in Group E occupancies with rooms

used either for instruction with at least one exit door directly to the exterior at ground level or for assembly purposes with at least one-half of the required exits directly to the exterior at ground level.

2. Unsprinklered use condition 5 shall have exit access corridors of 1 hour fire resistance.

704.2.5 Exit Access corridors within multi tenant buildings or floors of multi tenants. Fire resistance rating of the exit access corridors shall be in accordance with Table 704.2.5.

Notes 1. Corridors need not be rated in Group E occupancies with rooms

used either for instruction with at least one exit door directly to the exterior at ground level or for assembly purposes with at least one-half of the required exits directly to the exterior at ground level.

2. Unsprinklered use condition 5 shall have exit access corridors of 1 hour fire resistance.

3. Exit access corridors to be smoke tight.

4. A minimum of 20 minute doors are required in rated corridor except as

may be required by Tables 704.1 and 705.1.2."

Section 32. Section 16.08.012 J of the Metropolitan Code of Laws is hereby amended by deleting the section and substituting the following:

"J. Section 705.1.1.3 of the 1997 Edition of the Standard Building Code is amended by deleting the section in its entirety and substituting the following:

705.1.1.3 Where openings in an exterior wall are above and within 5 ft. laterally of an opening of the story below, such opening shall be separated by an approved noncombustible flame barrier extending 30 in. beyond the exterior wall in the plane of the floor or by approved vertical flame barriers

not less than 3 ft. high measured vertically above the top of the lower opening. Such flame barriers are not required when a complete approved automatic sprinkler system (NFPA 13 system) is installed. EXCEPTION: In Type V & VI construction, solid flame barrier may be constructed of 2 in. nominal fire retardant treated wood (T & G or Shiplap)."

Section 33. Section 16.08.012 K of the Metropolitan Code of Laws is hereby amended by deleting the section and substituting the following:

"K. Sections 905.2.2 and 905.2.3 of the 1997 Edition of the Standard Building Code are amended by deleting the sections in their entirety and substituting the following:

905.2.2 In dwellings, dwelling units, dormitory, and sleeping rooms in residential care/assisted living occupancies smoke detectors shall be installed in each sleeping room, outside of each separate sleeping area in the immediate vicinity of the bedrooms and on each additional story of the dwelling, including basements and cellars, basement and attached garages but not including crawl spaces and uninhabitable attics.

905.2.3 In Rl, R2, R3 and R4 units with split levels, a smoke detector need be installed only on the upper level, provided the lower level is less than one full story below the upper level, except that if there is a door between levels, then a detector is required on each level. All detectors shall be interconnected such that actuation of one alarm will actuate all the alarms in the individual unit and shall provide an alarm which will be audible in all sleeping areas.

905.2.3.1 Alteration, repairs and additions. When interior alterations, repairs or additions

requiring a permit occur, or when one or more sleeping rooms are added or created in existing dwellings or dwelling units, the entire dwelling unit shall be provided with smoke detectors located as required for new dwellings; the smoke detectors shall be interconnected and hard wired.

Exception: Detectors shall not be required to be interconnected and hard wired when the alterations, repairs or additions do not result in the exposure of electrical wiring by the removal of interior wall and ceiling finishes."

Section 34. Section 16.08.012 L of the Metropolitan Code of Laws is hereby amended by deleting the section and substituting the following:

"L. Sections 1005.3.1 and 1005.3.2 of the 1997 Edition of the Standard Building Code are amended by deleting the sections in their entirety and substituting the following:

1005.3.1 It shall be prohibited to use exit access corridors for return or exhaust from adjoining air conditioned spaces through louvers or other devices mounted in corridor doors or partitions. This section is to also apply to Section 407.2 of the 1997 Standard Mechanical Code.

1005.3.2 Except in Group I or Group R occupancies, 1005.3.1 may be waived by the Building Official providing corridors are equipped with approved smoke detectors, maximum spacing 30 ft., or provide fan shutdown controls (that comply with Section 407 of the 1997 Standard Mechanical Code) to automatically stop supply, return and exhaust and close louvers or other devices mounted within the corridor doors or partitions."

Section 35. Section 16.08.012 M of the Metropolitan Code of Laws is hereby amended by deleting the section and substituting the following:

"M. Section 1005.4.1 of the 1997 Edition of the Standard Building Code is amended by deleting the section and substituting the following:

1005.4.1 Every sleeping room on the first, second, third and forth story or within basements of Group R occupancies shall have at least one operable window or exterior door approved for emergency egress or rescue.

Exceptions:

1. Group Rl occupancies equipped with an approved automatic sprinkler system.

2. Group Rl occupancies with sleeping rooms provided with a door to a rated corridor or balcony having access to two remote exits in opposite directions.

3. The emergency escape and rescue opening may open onto a balcony within an atrium provided the balcony provides access to an exit and the dwelling unit or sleeping room has a means of egress which is not open to the atrium."

Section 36. Section 16.08.012 N of the Metropolitan Code of Laws is hereby amended by deleting the section and substituting the following:

"N. Section 1007.3.1 of the 1997 Edition of the Standard Building Code is amended by deleting the section in its entirety and substituting the following:

1007.3.1 Treads and risers of stairs (within dwelling and dwelling units or leading to a single dwelling unit) shall be so proportioned that the sum of two risers and a tread, exclusive of projection of nosing, is not less than 24 in. nor more than 25 in. The height of riser shall not exceed 7 3/4 in. and treads exclusive of nosing, shall be not less than 9 in. wide. Exception special stairs in section 1007.8.

1007.3.1.1. For stairs other than those governed by Section 1007.3.1 and 1007.8, the following shall apply.

Maximum height of risers 7 in.

Minimum height of risers 4 in.

Minimum tread depth 11 in. (Measured Nosing to Nosing)."

Section 37. Section 16.08.012 O of the Metropolitan Code of Laws is hereby amended by deleting the section and substituting the following:

"O. Section 1203.1.4 of the 1997 Edition of the Standard Building Code is amended by deleting the section in its entirety and substituting the following:

1203.1.4 Except as otherwise provided herein, required windows shall have glazed openings of clear glass of area not less than 8% of the floor area of the room served by them with the following exceptions:

1. Obscure glass, glass blocks and similar glazed panels that admit less light than clear glass shall have area increased to admit amount light equivalent to the above requirements.

2. In non-residential occupancies, year around mechanically ventilating conditioned air systems may be substituted for windows, as required herein, in rooms other than rooms used for sleeping purposes. Window type air conditioning units are not included in this exception.

3. In Rl occupancies, year around mechanically ventilating conditioned air systems and window type air conditioning units may be substituted for windows, as required herein."

Section 38. Section 16.08.012 P of the Metropolitan Code of Laws is hereby amended by deleting the section and substituting the following:

Section 1516.1 of the 1997 Edition of the Standard Building Code is amended by deleting the section and substituting the following:

"1516.1 Gutter and Leaders. All buildings shall be provided with adequate gutters and leaders of a non-combustible material or a minimum of schedule 40 plastic pipe. See Chapter 11 of the Standard Plumbing Code for sizing of vertical leaders and horizontal storm drains. All leaders shall be terminated in an approved storm drain or storm sewer system where such is available. Where a public storm sewer system is not available, adequate provision shall be made by the owner for the disposal of all storm water.

EXCEPTION: Gutters and downspouts are not required on private garages.

1516.2. Where leaders and storm drains are required along a public right of way adjacent to public sidewalks or paved public walkways, the discharge from such leaders shall be piped under such sidewalk or paved public walkway to the nearest storm sewer or sidewalk curb. No storm water shall be discharged in such a manner as will permit it to flow over or across any public sidewalk or paved public right of way area."

Section 39. Section 16.08.012 Q of the Metropolitan Code of Laws is hereby amended by deleting the section and substituting the following:

"Q Section 2107.2 of the 1997 Edition of the Standard Building Code is hereby amended by deleting the section and substituting the following new sections as follows:

2107.2.1 Lateral support. Lateral support shall be provided by intersecting walls, pilasters, columns, or other vertical members of sufficient strength to provide the required support when the distance between supports is measured horizontally; or by floors, roofs or other horizontal structural elements which are of sufficient strength to provide the required support when the distance between supports is measured vertically.

2107.2.2. Sufficient bonding or anchorage shall be provided between the walls and their supports to resist the assumed wind or other horizontal forces acting either inward or outward. All structural elements relied upon for lateral support shall have sufficient strength and stability to transfer the horizontal force acting in either direction to adjacent structural members or to the ground. When floors or roofs are depended upon for receiving horizontal forces, provisions shall be made in the buildings to transfer the lateral forces to the ground.

2107.2.3. When horizontal structural elements of a building (such as floors, roof spandrel beams) are depended upon for lateral support, vertical bracing of bearing or nonbearing wall shall also be provided at intervals of not more than 75 times the wall thickness. Such vertical bracing may be provided by cross walls, pilasters, buttresses or other equivalent structural members.

2107.2.4 PILASTERS. When relied upon to provide the required lateral support, the width of pilasters shall not be less than 1/10 the spaces between such pilasters. All pilasters shall not be less than 4 inches (102 mm) thicker than the wall supported. In no case shall the distance between such pilasters exceed the lateral support provisions of Table 2107.1.

2107.2.5 PIERS. The unsupported height of masonry piers shall not exceed 10 times their least dimension. When structural clay tile or hollow concrete masonry units are used for isolated piers to support beams and girders, the cellular spaces shall be filled solidly with concrete or Type M or S mortar, except that unfilled hollow piers may be used if their unsupported height is not more than four times their least dimension. When hollow masonry units are solidly filled with concrete or Type M, S or N mortar, the allowable compressive stress may be increased as provided for in Table 2106.2.

2107.2.6 Hollow piers shall be capped with 4 inches (102 mm) of solid masonry or concrete or shall have cavities of top course filled with concrete or grout or other methods approved by the Building Official."

Section 40. Section 16.08.012 R of the Metropolitan Code of Laws is hereby created as follows:

"R. Section 2305.2.3(2) of the 1997 Edition of the Standard Building Code is hereby amended by deleting the section and substituting the following:

2. Multifamily (two or more) dwellings, motels, hotels. In attic, mansard, overhang, or other concealed roof space above and in line with tenant separation when tenant separation walls do not extend to the roof sheathing above OR provide draftstopping at every other dwelling unit or 3,000 sq. ft. of attic space whichever is less. Draftstopping shall consist of ½ in. plywood or ½ gypsum board applied to each side of trusses or rafters.

Exceptions:

1. Where corridor walls provide a tenant separation, draftstopping shall only be required above one of the corridor walls.

2. Where flat roofs with solid joist construction are used, draftstopping over tenant separation walls is not required. 3. Where approved sprinkler system (13 not 13R) is provided, draftstopping shall be required for areas over 9,000 sq. ft."

Section 41. Section 16.08.012 S of the Metropolitan Code of Laws  is hereby created as follows:

"S. Section 2308.1.1 and Table 2308.lA of the 1997 Edition of the Standard

Building Code is hereby amended by deleting the sections and substituting

the following:

2308.1.1. Studs in one and two story buildings shall not be less than 2 X 4 with the wide face perpendicular to the wall. In three story buildings, studs in first story shall not be less than 2 X 4s @ 12 in. o.c. or 3 X 4s or 2 X 6s. Studs shall be spaced in accordance with Table 2308.1 A.

Section 42. Section 16.08.012 T of the Metropolitan Code of Laws  is hereby created as follows:

"T. Section 3107 and 3108..1.3.2 of the 1997 Edition of the Standard Building Code is amended by deleting the section in its entirety."

Section 43. Section 16.08.012 U of the Metropolitan Code of Laws  is hereby created as follows:

"U. Section F101.1.2 and F101.2 of the 1997 Edition of the Standard Building Code is amended by deleting the sections in their entirety and substituting the following:

F101.1.2 The Fire District shall include such territory or portion thereof as established by the official Fire Zone Map of the Metropolitan Government of Nashville and Davidson County, Tennessee."

Section 44. Section 16.08.012 of the Metropolitan Code of Laws is

hereby amended by adding a new section as follows and placing the sections in Building Code numeric order:

"Section 1015.2 of the 1997 Edition of the Standard Building Code is amended by deleting the section in its entirety and substituting the following.

1015.2 Height. Guardrails shall form a vertical protective barrier not less than 42 inches (1067mm) high.

Exceptions:

1. Guardrails on open or glazed sides of stairs and ramps shall be permitted to be 38 inches (965mm) high. Guardrails exceeding 38 inches (965mm) high shall have a handrail located not less than 34 inches (864mm) nor more than 38 inches (965mm) above the leading edge of a tread.

2. The top element of a guard at the inside open or unenclosed edge of any intermediate stairway landing where the stairs reverse direction may be at the same height as the stairway handrails when the horizontal distance between the stair flights is 1 ft (305mm) or less and when a continuous handrail as specified in 1007.5 is provided."

CABO 1 & 2 Family Dwelling Code

Section 45. Section 16.08.014 B of the Metropolitan Code of Laws is hereby amended by adding another definition to the section as follows:

Section 202 of the 1995 Edition of the CABO One and Two Family Dwelling Code is amended by deleting the definition of "Family" and substituting the following:

"Family. Family is an individual, two or more persons related by blood, marriage or law, or a group of not more than any five unrelated persons living together in a dwelling unit"

Section 46. Section 16.08.014 H of the Metropolitan Code of Laws

is hereby amended by deleting the section and substituting the following:

"H. Section 316 of the 1995 Edition of the CABO One and Two Family

Dwelling Code is amended by deleting and substituting the following:

SECTION 316

SMOKE DETECTORS

316.1 Smoke detectors required. Approved single-station or multiplestation smoke detectors shall be installed in accordance NFPA 72, Chapter 2. Smoke detectors shall be installed in each sleeping room, outside of each separate sleeping area in the immediate vicinity of the bedrooms and on each additional story of the dwelling, including basements and cellars, attached garages but not including crawl spaces and uninhabitable attics. In dwellings or dwelling units with split levels, a smoke detector need be installed only on the upper level, provided the lower level is less than one full story below the upper level, except that if there is a door between levels, then a detector is required on each level. All detectors shall be interconnected such that then actuation of one alarm will actuate all the alarms in the individual unit and shall provide an alarm which will be audible in all sleeping areas. All detectors shall be approved and listed and shall be installed in accordance with the manufacturer's instructions.

316.1.1 Alteration, repairs and additions. When interior alterations, repairs or additions requiring a permit occur, or when one or more sleeping rooms are added or created in existing dwellings, the entire building shall be provided with smoke detectors located as required for new dwellings; the smoke detectors shall be interconnected and hard wired.

Exception: Detectors shall not be required to be interconnected and hard wired when the alterations, repairs or additions do not result in the exposure of electrical wiring by the removal of interior wall and ceiling finishes.

316.1.2. Bed and breakfast homestays: A smoke detector shall be installed and maintained in each bedroom and outside of each separate sleeping area in the immediate vicinity of the bedrooms. A battery-operated smoke detector is acceptable.

316.2. Power source. In new construction, the required smoke detectors shall receive their primary power from the building wiring when such wiring is served from a commercial source, and when primary power is interrupted, shall receive power from a battery. Wiring shall be permanent and without a disconnecting switch other than those required for over-current protection. Smoke detectors shall be permitted to be battery operated when installed in buildings without commercial power or in buildings which undergo alterations, repairs or additions regulated by section 316.1.1."

Section 47. Section 16.08.014 P of the Metropolitan Code of Laws is hereby amended by deleting the section and substituting the following:

"P. Section 910 of the 1995 Edition of the CABO One and Two Family Dwelling Code is amended by deleting the section and substituting the following:

SECTION 910 - ROOFING REPLACEMENT/ RECOVERING.

910.1 General. Materials and methods used for repair, replacement or recovering an existing roof shall comply with Section 1503.4 of the 1997 Edition of the Standard Building Code. Not more than thirty-three percent (33%) of a roof covering of a building or structure shall be re-roofed in any twelve (12) month period unless the entire roof covering is made to conform with the requirements of this chapter."

STANDARD PLUMBING CODE

Section 48. Section 16.12.130 of the Metropolitan Code of Laws is hereby amended by adding a new section as follows and re-lettering the sections in Plumbing Code numeric order:

"Section 202 of the 1994 edition of the Standard Plumbing Code is hereby amended by deleting the definition of "PLUMBING OFFICIAL" and substituting the following:

PLUMBING OFFICIAL - shall mean the Director of the Metropolitan Department of Codes Administration."

Section 49. Section 16.12.130 D of the Metropolitan Code of Laws is hereby amended by deleting the subsection in its entirety and substituting the following:

"D. Section 407.1.4 is hereby amended by deleting the section and substituting the following:

407.1.4 Tenancies, rental units or other habitable areas within a building when separated from the required toilet facilities by walls or partitions without common access openings shall be considered independently from the remainder of the building and shall be provided with separate facilities in accordance with this chapter regardless of the type of occupancy.

Exception: When the required number of facilities are based on the gross leaseable area are installed in a covered mall building and the core facilities are separated from the tenant spaces without common access but within three hundred (300) feet to the entrance to the tenant space, only one (1) employee facility would be required in each tenant space four thousand (4,000) square feet or less of building area. In tenant spaces that exceed four thousand (4,000) square feet but less than 7,000 square feet of net area, two (2) employee facilities are required. For tenant spaces of 7,000 square feet and over, Table 407 determines the number of fixtures. This exception does not apply to anchor stores."

Section 50. Section 16.12.130 of the Metropolitan Code of Laws is hereby amended by adding a new section as follows and re-lettering the sections in Plumbing Code numeric order:

"Section 409.1.3 of the 1994 edition of the Standard Plumbing Code is hereby deleting the section and substituting the following:

409.1.3 Hot Water. Dishwashing machines or similar dishwashing

equipment not in private living quarters or dwelling units shall be provided

with water at 180 Degrees F(82 Degrees C) for sterilization.

409.1.3.1 Hot Water Chemical. Chemical dishwashing machines or similar dishwashing equipment not in private living quarters or dwelling units shall be provided with water at 140 Degrees F(60 Degrees C) for chemical sterilization as approved by the Metro Department of Health."

GAS/MECHANICAL CODES

Section 51. Section 16.16.190 B and D of the Metropolitan Code of

Laws are hereby amended by deleting the subsections in their entirety and substituting the following:

"B. The 1997 Edition of the Standard Gas Code, Sections 101, 103 and 105. Sections 201 through 808.5.2 inclusive and Sections 1001 through 1102 inclusive with Appendices A, D and E.

D. The 1997 Edition of the Standard Mechanical Code, Sections 101, 103, 105, and 107. Sections 201 through 1602 inclusive with Appendices A and C."

CABO CODE GAS & MECHANICAL

Section 52. Section 16.16.230A of the Metropolitan Code of Laws is hereby amended by deleting the subsections in their entirety and substituting the following:

"A. Section 1601.3.1 of the 1995 Edition of the CABO One and Two Family Dwelling Code is amended by deleting and substituting the following:

1601.3.1 Prohibited locations. A vented floor furnace shall not be located under a stairway. Unlisted non-vented appliances shall not be installed in bathrooms or bedrooms."

Section 53. Section 16.16.230B of the Metropolitan Code of Laws is hereby amended by deleting the subsections in their entirety and substituting the following:

"B. Section 1602.2.1 of the 1995 Edition of the CABO One and Two Family

Dwelling Code is amended by deleting and substituting the following:

1602.2.1 Prohibited locations. A vented wall furnace shall not be located under a stairway. Unlisted non-vented appliances shall not be installed in bathrooms or bedrooms."

Section 54. Section 16.16.230C of the Metropolitan Code of Laws is hereby amended by deleting the subsections in their entirety and substituting the following:

"C. Section 1603.3.1 of the 1995 Edition of the CABO One and Two Family Dwelling Code is amended by deleting and substituting the following:

1603.3.1 Prohibited locations. A vented room heater shall not be located under a stairway. Unlisted non-vented appliances shall not be installed in bathrooms or bedrooms."

Section 55. Section 16.16.230E of the Metropolitan Code of Laws is hereby amended by relocating section "E" in its entirety to a new section "F".

Section 56. Section 16.16.230D of the Metropolitan Code of Laws is

hereby amended by relocating section "D" to section "E" and by deleting the sections in their entirety and substituting the following:

"E. Section 2205.6 of the 1995 Edition of the CABO One and Two Family Dwelling Code is hereby created as follows:

2205.6 Prohibited locations. A vented decorative gas appliance shall not be located under a stairway. Unlisted non-vented decorative appliances shall not be installed in bathrooms or bedrooms."

Section 57. Section 16.16.230D of the Metropolitan Code of Laws is hereby amended by adding a new code section as follows:

"D. Section 1901.3.5(l) of the 1995 Edition of the CABO One and Two Family Dwelling Code is amended by deleting and substituting the following:

All ductwork installed in non-conditioned and not completely conditioned areas such as crawl, attic and the floor/ceiling assembly shall be insulated."

STANDARD GAS CODE

Section 58. Section 16.16.240 of the Metropolitan Code of Laws is hereby amended by adding a new section as follows and re-lettering the sections in Plumbing Code numeric order:

"Section 202 of the 1997 edition of the Standard Gas Code is hereby amended by deleting the definition of "ADMINISTRATIVE AUTHORITY" and substituting the following:

ADMINISTRATIVE AUTHORITY - shall mean the Director of the Metropolitan Department of Codes Administration."

Section 59. Section 16.16.240 of the Metropolitan Code of Laws is hereby amended by deleting the year "1994" and substituting the year "1997" used through the section.

Section 60. Section 16.16.240 H of the Metropolitan Code of Laws is hereby amended by deleting and substituting the following:

"H Section 309.14.2 of the 1997 Edition of the Standard Gas Code is hereby amended by deleting the section and substituting the following:

309.14.2. Plastic piping shall not be used for consumer's gas piping when operating pressures are in excess of 2 psi, unless approved by the Director of Codes Administration or his duly authorized representative."

Section 61. Section 16.16.240 L of the Metropolitan Code of Laws is hereby amended by deleting and substituting the following:

"L Section 402.4.4.3 the 1997 Edition of the Standard Gas Code is hereby amended by deleting the section in its entirety."

Section 62. Section 16.16.240 of the Metropolitan Code of Laws is hereby amended by adding the following new section M:

"M Section 402.4.4.4 (5) of the 1997 Edition of the Standard Gas Code is hereby amended by deleting the section and substituting the following:

5. In calculating free area of louvers and grilles, consideration shall be given to the blocking effect of louvers, grilles, or screens protecting openings. If the free area of a louver or grille is known, it should be used in calculating the size opening required to provide the free area specified. If the design and free area are not known, it may be assumed that wood louvers will have twenty to twenty-five (20--25) percent free area and metal louvers and grilles will have sixty to seventy-five (60--75) percent free area. Louvers and grilles shall be fixed in the open position or interlocked with the equipment so that they are opened automatically during equipment operation."

Section 63. Section 16.16.240 of the Metropolitan Code of Laws is hereby amended by adding a new section O.

"O Section 504.1 of the 1997 Edition of the Standard Gas Code is hereby amended by adding a new section 504.1.1.

504.1.1 Single-faucet automatic instantaneous water heaters, as permitted under 608.1.3 in addition to the above, shall not be installed in kitchen sections of light housekeeping rooms or rooms used by transients."

Section 64. Section 16.16.240P of the Metropolitan Code of Laws is hereby amended by deleting the section and substituting the following:

"P Section 504.2 of the 1997 Edition of the Standard Gas Code is hereby amended by deleting sections 504.2.1 and 504.2.2 and substituting the following:

504.2.1 Water heaters other than the direct vent type shall be located as close as practicable to the chimney or gas vent. They should be so located as to provide short runs of water piping to the water heaters.

504.2.2 All gas water heaters installed in attics, on combustible floors or in remote locations shall rest in pans of minimum 0.0276-inch (24 ga.) galvanized sheet steel or equivalent with minimum depth of two (2) inches and shall have a minimum clearance from the water heater of two (2) inches on all sides: the pan shall be a sufficient size to receive all drippings or condensation from such water heaters. All drain pans shall have a minimum one (1) inch drain. No plastic pans will be permitted (See 504.8 of the Standard Plumbing Code for other safety pan requirements).

Exception: Water heaters shall not be located in unheated and un-insulated spaces except in unheated basements and garages."

Section 65. Section 16.16.240Q of the Metropolitan Code of Laws is hereby amended by deleting section 506.1.4 and substituting the following:

'506.1.4 Prohibited Installations. Listed and unlisted vented decorative appliances shall not be installed in bathrooms or bedrooms (See Table 506.1.4)."

Section 66. Section 16.16.240T of the Metropolitan Code of Laws is hereby amended by deleting section 608.1(ld) and substituting the following:

"d. Listed Infrared Radiant heaters (see 516.1.1)."

Section 67. Section 16.16.240 W of the Metropolitan Code of Laws is hereby amended by deleting the phrase "W. Section 1001.3"and substituting "W. Section 1005".

Section 68. Section 16.16.240 Y of the Metropolitan Code of Laws is hereby amended by deleting the section and substituting the following:

"Y. Section 1007 of the 1997 Edition of the Standard Gas Code is hereby amended by deleting and substituting the following:

1007 Manual Shutoff Valve.

Where there is more than one MP regulator in the complete piping system served by one meter, a listed shutoff valve shall be installed immediately ahead of each MP regulator. A listed shutoff valve shall be installed ahead of each 2 psi to seven (7) inch w.c. regulator. Individual runs of tubing may be made to each appliance from a manifold. The cocks may be at the manifold, but they must be easily accessible, and identified as to the appliance served."

STANDARD MECHANICAL CODE

Section 69. Section 16.16.260 A of the Metropolitan Code of Laws is hereby amended by changing the section letter from "A" to "C" and the code edition year from "1994" to "1997"

Section 70. Section 16.16.260 of the Metropolitan Code of Laws is hereby amended by adding a new section as follows:

"A. Section 202 of the 1997 edition of the Standard Mechanical Code is hereby amended by deleting the definition of "ADMINISTRATIVE AUTHORITY" and substituting the following:

ADMINISTRATIVE AUTHORITY - shall mean the Director of the Metropolitan Department of Codes Administration."

Section 71. Section 16.12.260B of the Metropolitan Code of Laws is hereby amended by replacing the section and substituting the following:

"B. Section 202 of the 1997 Edition of the Standard Mechanical Code is hereby amended by deleting the definition of "RESIDENTIAL DUCT" and substituting the following:

RESIDENTIAL DUCT. Systems serving one and two family dwellings."

Section 72. Section 16.12.260 of the Metropolitan Code of Laws is hereby amended by adding a new section D as follows:

"D. Section 704.4.2 of the 1997 Edition of the Standard Mechanical Code is hereby amended by deleting the section in its entirety."

Section 73. Section 16.16.260 of the Metropolitan Code of Laws is hereby amended by adding the following new section E:

"E Section 704.4.3(5) of the 1997 Edition of the Standard Mechanical Code is hereby amended by deleting the section and substituting the following:

5. In calculating free area of louvers and grilles, consideration shall be given to the blocking effect of louvers, grilles, or screens protecting openings. If the free area of a louver or grille is known, it should be used in calculating the size opening required to provide the free area specified. If the design and free area are not known, it may be assumed that wood louvers will have twenty to twenty-five (20--25) percent free area and metal louvers and grilles will have sixty to seventy-five (60--75) percent free area. Louvers and grilles shall be fixed in the open position or interlocked with the equipment so that they are opened automatically during equipment operation."

NATIONAL ELECTRICAL CODE

Section 74. Section 16.20.150 of the Metropolitan Code of Laws is hereby amended by adding a new section as follows and relettering the sections in Electrical Code numeric order:

"Article 100A of the 1996 edition of the National Electrical Code is hereby amended by adding the following new definition:

Authority having jurisdiction. - shall mean the Director of the Metropolitan Department of Codes Administration."

Misc.

Section 75. Section 16.04.180 of the Metropolitan Code of Laws is hereby amended by deleting the section and substituting the following:

"16.04.180 Adopted by reference.

The fire district map of the Metropolitan Government of Nashville/Davidson County, a copy of which is on file with the metropolitan clerk, is adopted by reference, as fully as though copied in this chapter, as the official fire district map of the Metropolitan Government. Such map, together with the boundaries set forth therein designating the fire district, is expressly made a part of this code. The district shall apply to all construction there in."

Section 76. Section 16.12.280 of the Metropolitan Code of Laws is hereby amended by deleting the section and substituting the following:

"16.12.280 Non-transferability.

Permits issued under this chapter are not transferable from one contractor, one job, site or location to another, and any refunds shall be made in accordance with Section 16.12.240. This provision shall not prohibit the correction or change of addresses, location or contractor made through error on the application."

Section 77. Section 16.12. of the Metropolitan Code of Laws is hereby amended by adding the following new section 16.12.295:

'16.12.295 Change in contractor-Reissuance of permit--Fees.

When a change in a contractor occurs before a job is completed, the contractor who obtains the permits, shall notify the Codes Department in writing. A new permit shall be taken out for the unfinished construction. The contractor that completes the construction shall pay a prorata permit fee based upon the unfinished construction; but in no case, less than the minimum permit fee."

Section 78. Section 16.20.340 of the Metropolitan Code of Laws is hereby amended by deleting the section and substituting the following:

"16.20.340 Non-transferability

Permits issued under this chapter are not transferable from one contractor, one job, site or location to another, and any refunds shall be made in accordance with Section 16.20.260. This provision shall not prohibit the correction or change of addresses, location or contractor made through error on the application."

Section 79. Section 16.20 of the Metropolitan Code of Laws is hereby amended by adding the following new section 16.20.345:

"16.20.345 Change in contractor--Reissuance of permit--Fees.

When a change in a contractor occurs before a job is completed, the contractor who obtains the permits, shall notify the Codes Department in writing. A new permit shall be taken out for the unfinished construction. The contractor that completes the construction shall pay a prorata permit fee based upon the unfinished construction; but in no case, less than the minimum permit fee."

Section 80. Section 16.28.220 of the Metropolitan Code of Laws is hereby amended by deleting the section and substituting the following:

"16.28.220 Non-transferability.

Permits issued under this chapter are not transferable from one contractor, one job, site or location to another, and any refunds shall be made in accordance with Section 16.28.140. This section shall not prohibit the correction or change of addresses or location made through error on the application."

Section 81. Section 16.16. of the Metropolitan Code of Laws is hereby amended by adding the following new section 16.28.260:

"16.28.260 Change in contractor--Reissuance of permit--Fees.

When a change in a contractor occurs before a job is completed, the contractor who obtains the permits, shall notify the Codes Department in writing. A new permit shall be taken out for the unfinished construction. The contractor that completes the construction shall pay a prorata permit fee based upon the unfinished construction; but in no case, less than the minimum permit fee."

HOUSING CODE

Section 82. Section 16.24.010 of the Metropolitan Code of Laws is hereby amended by deleting the definition of "Family" and substituting the following:

"Family. Family is an individual, two or more persons related by blood, marriage or law, or a group of not more than any five unrelated persons living together in a dwelling unit."

Section 83. Section 16.24.110 of the Metropolitan Code of Laws is hereby amended by adding the following new section 1:

'I.1 Every dwelling unit shall have smoke detectors and shall be installed in each sleeping room, outside of each separate sleeping area in the immediate vicinity of the bedrooms and on each additional story of the dwelling, including basements and cellars, attached garages but not including crawl spaces and uninhabitable attics. In dwellings or dwelling units with split levels, a smoke detector need be installed only on the upper level, provided the lower level is less than one full story below the upper level, except that if there is a door between levels, then a detector is required on each level. All detectors shall be approved and listed and shall be installed in accordance with the manufacturer's instructions.

2. Alteration, repairs and additions. When interior alterations, repairs or additions requiring a permit occur, or when one or more sleeping rooms are added or created in existing dwellings, the entire building shall be provided with smoke detectors located as required for new dwellings; the smoke detectors shall be interconnected and hard wired.

Exception: Detectors shall not be required to be interconnected and hard wired when the alterations, repairs or additions do not result in the exposure of electrical wiring by the removal of interior wall and ceiling finishes.

3. Power source. In new construction, the required smoke detectors shall receive their primary power from the building wiring when such wiring is served from a commercial source, and when primary power is interrupted, shall receive power from a battery. Wiring shall be permanent and without a disconnecting switch other than those required for overcurrent protection. Smoke detectors shall be permitted to be battery operated when installed in buildings without commercial power or in buildings which undergo alterations, repairs or additions regulated by the above section."

Section 84. Section 16.24.120G of the Metropolitan Code of Laws is hereby amended by deleting the section in its entirety and substitute the following:

"G. Every window or door used or intended to be used for ventilation which may provide an entry for mosquitoes, flies or other insects, and every opening to a basement or cellar which may provide entry for rodents, shall be supplied with screens of standard-size mesh, or such other devices as will effectively prevent their entrance.

Exception: Dwelling units with central air-conditioning are not required to have screen on windows and doors used for ventilation."

Section 85. Section 16.24.140A & B of the Metropolitan Code of

Laws is hereby amended by deleting the sections in its entirety and re-lettering the other subsections.

Section 86. Section 16.24.230 of the Metropolitan Code of Laws is hereby amended by deleting the section and substituting the following:

"16.24.230 Minimum space requirements.

Every room occupied for sleeping purposes shall contain at least seventy square feet of floor space."

Section 87. Section 16.24 of the Metropolitan Code of Laws is hereby amended by adding the following new section 16.24.265:

16.24.265 Smoke Detectors

1 Every dwelling unit shall have smoke detectors and shall be installed in each sleeping room, outside of each separate sleeping area in the immediate vicinity of the bedrooms and on each additional story of the dwelling, including basements and cellars, attached garages but not including crawl spaces and uninhabitable attics. In dwellings or dwelling units with split levels, a smoke detector need be installed only on the upper level, provided the lower level is less than one full story below the upper level, except that if there is a door between levels, then a detector is required on each level. All detectors shall be approved and listed and shall be installed in accordance with the manufacturer's instructions.

2. Alteration, repairs and additions. When interior alterations, repairs or additions requiring a permit occur, or when one or more sleeping rooms are added or created in existing dwellings, the entire building shall be provided with smoke detectors located as required for new dwellings; the smoke detectors shall be interconnected and hard wired.

Exception: Detectors shall not be required to be interconnected and hard wired when the alterations, repairs or additions do not result in the exposure of electrical wiring by the removal of interior wall and ceiling finishes.

3. Power source. In new construction, the required smoke detectors shall receive their primary power from the building wiring when such wiring is served from a commercial source, and when primary power is interrupted, shall receive power from a battery. Wiring shall be permanent and without a disconnecting switch other than those required for overcurrent protection. Smoke detectors shall be permitted to be battery operated when installed in buildings without commercial power or in buildings which undergo alterations, repairs or additions regulated by the above section."

Section 88. That these Sections of this Ordinance shall take effect immediately upon signage, the welfare of the Metropolitan Government of Nashville and Davidson County requiring it.

Sponsored By: Vic Varallo

AMENDMENT NO. 1

TO

ORDINANCE NO. O98-1445

Mr. President:

I move to amend Ordinance No. O98-1445 as follows:

By amending Section 1 thereof by adding the following enactment clause after the Caption thereof:

"BE IT ENACTED BY THE COUNCIL OF THE METROPOLITAN GOVERNMENT OF NASHVILLE AND DAVIDSON COUNTY:"

By deleting Section 88 thereof, and substituting in lieu thereof the following new Section 88:

"Section 88. That this Ordinance shall take effect from and after its adoption, the welfare of The Metropolitan Government of Nashville and Davidson County requiring it."

Sponsored By: Vic Varallo

Amendment Adopted: December 1, 1998

LEGISLATIVE HISTORY
Introduced:	November 17, 1998
Passed First Reading:	November 17, 1998
Referred to:	Codes Committee Public Safety Committee
Amended:	December 1, 1998
Passed Second Reading:	December 1, 1998
Passed Third Reading:	December 15, 1998
Approved:	December 17, 1998
By: