Strike Section 904.1.1 of theInternationalExistingBuildingCode in its entirety and insert new Section 904.1.1 to theExistingBuildingCode in its place to read as follows:
High-rise buildings. In high-rise buildings, work areas shall be provided with automatic sprinkler protection in accordance with Section 903 of the Building Code, 12 DCMR A.
Where Level 3 work areas occur on 75 percent or more of the building floors, excluding mechanical, parking and non-occupiable levels, automatic sprinkler protection shall be provided throughout the entire building in accordance with Section 903 of the Building Code.
Where an automatic sprinkler system with sprinkler control valves and water flow devices is provided for each floor throughout the building in accordance with Section 903 of the Building Code, modifications to the minimum type of construction and fire resistance rating requirements of the Construction Codes are permitted as described in Section 403.2 of the Building Code.
Additional requirements for alterations to 100% percent of floors. Where Level 3 alteration work areas occur on all floors, excluding mechanical, parking and non-occupiable levels, the building shall comply with the following additional requirements:
Exception: Where the following features do not exist in the building or cannot be readily provided as part of a Level 3 alteration, they are not required to be added for compliance with Section 911.1 of the Building Code: annunciator unit visually indicating the location of the elevators and whether they are operational; status indicators and controls for air-handling systems and emergency and standby power status indicators.
Strike Section 904.1.2 of theInternationalExistingBuildingCode in its entirety and insert new Section 904.1.2 to theExistingBuildingCode in its place to read as follows:
Rubbish and linen chutes. Rubbish and linen chutes located in the work area shall be provided with automatic sprinkler system protection where protection of the rubbish and linen chute would be required under the provisions of the Building Code for new construction.
D.C. Mun. Regs. tit. 12, r. 12-J904