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 D.C. Municipal Regulations (Last Updated: September 13, 2017)
 Title 12. CONSTRUCTION CODES SUPPLEMENT OF 2013
 SubTilte 12-A. BUILDING CODE SUPPLEMENT OF 2013
 Chapter 12-A7. FIRE-RESISTANCE-RELATED CONSTRUCTION

  Section 12-A713. SHAFT ENCLOSURES  

Latest version.

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    Strike Section 713.14.1 of the International Building Code in its entirety and insert new Section 713.14.1 to the Building Code in its place to read as follows:

    713.14.1 Elevator lobby. An enclosed elevator lobby shall be provided at each floor where an elevator shaft enclosure connects more than three stories.  The lobby enclosure shall separate the elevator shaft enclosure doors from each floor by fire partitions.  In addition to the requirements in Section 708 for fire partitions, doors protecting openings in the elevator lobby enclosure walls shall also comply with Section 716.5.3 as required for corridor walls, and penetrations of the elevator lobby enclosure by ducts and air transfer openings shall be protected as required for corridors in accordance with Section 717.5.4.1.  Elevator lobbies shall have at least one means of egress complying with Chapter 10 and other provisions within this code.

     

    Exceptions:

     

    1. Enclosed elevator lobbies are not required at the street floor, provided the entire street floor is equipped with an automatic sprinkler system in accordance with Section 903.3.1.1.

     

    1. Elevators not required to be located in a shaft in accordance with Section 712.1 are not required to have enclosed elevator lobbies.

     

    1. Enclosed elevator lobbies are not required where additional doors are provided at the hoistway opening in accordance with Section 3002.6.  Such doors shall comply with the smoke and draft control door assembly requirements in Section 716.5.3.1 when tested in accordance with UL 1784 without an artificial bottom seal.

     

    1. Enclosed elevator lobbies are not required where the building is protected by an automatic sprinkler system installed in accordance with Section 903.3.1.1 or 903.3.1.2.  This exception shall not apply to the following:

     

    4.1.Group I-2 occupancies; and

     

    4.2.Group I-3 occupancies. 

     

    1. Smoke partitions shall be permitted in lieu of fire partitions to separate the elevator lobby at each floor where the building is equipped throughout with an automatic sprinkler system installed in accordance with Section 903.3.1.1 or 903.3.1.2.  In addition to the requirements in Section 710 for smoke partitions, doors protecting openings in the smoke partitions shall also comply with Sections 710.5.2.2, 710.5.2.3, and 716.5.9 and duct penetrations of the smoke partitions shall be protected as required for corridors in accordance with Section 717.5.4.1.

     

    1. Enclosed elevator lobbies are not required where the elevator hoistway is pressurized in accordance with Section 909.21.

     

    1. Enclosed elevator lobbies are not required where the elevator serves only open parking garages in accordance with Section 406.5.

     

     

authority

Section 10 of the Construction Codes Approval and Amendments Act of 1986 (Act), effective March 21, 1987 (D.C. Law 6-216; D.C. Official Code § 6-1409 (2012 Repl.)) and Mayor’s Order 2009-22, dated February 25, 2009, as amended.

source

Final Rulemaking published at 61 DCR 2782 (March 28, 2014 – Part 2).

EditorNote

The District of Columbia Building Code (2013), referred to as the “Building Code,” consists of the 2012 edition of the International Building Code as amended by the District of Columbia Building Code Supplement (2013)(12 DCMR A). The International Building Code is copyrighted by the International Code Council and therefore is not republished here. However, a copy of the text may be obtained at:http://publicecodes.cyberregs.com/icod/ibc/2012/index.htm?bu=IC-P-2012-000001&bu2=IC-P-2012-000019.