SECTION 403 HIGH-RISE BUILDINGS 

[F] Section 403.3.2 Water supply to required fire pumps is replaced in its entirety as follows: Section 403.3.2 Water supply serving high-rise buildings. Water supply serving high-rise buildings shall be provided in accordance with Section 507.2 of the International Fire Code. 

[F] Section 403.4.1 Smoke detection is replaced in its entirety as follows: 

[F] 403.4.1 Smoke detection. Smoke detection shall be provided in accordance with Section 907.2.12.1 of the International Fire Code. 

[F] Section 403.4.2 Fire alarm systems is replaced in its entirety as follows: 

[F] 403.4.2 Fire alarm systems. A fire alarm system shall be provided in accordance with Section 907.2.12 of the International Fire Code. 

[F] Section 403.4.3 Standpipe system is replaced in its entirety as follows: 

[F] 403.4.3 Standpipe system. A standpipe system shall be provided in accordance with Section 905 of the International Fire Code. 

[F] Section 403.4.4 Emergency voice/alarm communication systems is replaced in its entirety as follows: 

[F] 403.4.4 Emergency voice/alarm communication system. An emergency voice/alarm communication system shall be provided in accordance with the Section 907.2.12 of the International Fire Code. 

[F] Section 403.4.5 Emergency responder radio coverage is replaced in its entirety as follows: 

[F] 403.4.5 Emergency responder radio coverage. Emergency responder radio coverage shall be provided in accordance with the Section 916.1 of the International Fire Code. 

[F] Section 403.4.6 Fire command is replaced in its entirety as follows: 

[F] 403.4.6 Fire command center. A fire command center shall be provided in accordance with Section 508 of the International Fire Code. Section 403.4.7 Smoke removal is replaced in its entirety as follows: Section 403.4.7 Smoke control. Smoke control shall be provided in accordance with Section 909 of the International Fire Code. 

[F] Section 403.4.8 Standby and emergency power systems and their subsections are replaced in their entirety as follows: 

[F] 403.4.8 Emergency power. An emergency power system complying with Section 2702 shall be provided for the emergency power loads specified in Section 403.4.8.3. 

[F] 403.4.8.1 Equipment room. If the emergency power system includes a generator set inside a building, the system shall be located in a separate room enclosed with 2-hour fire barriers constructed in accordance with Section 707 or horizontal assemblies constructed in accordance 2019 DENVER AMENDMENTS TO THE 2018 INTERNATIONAL BUILDING CODE 100 with Section 711, or both. System supervision with manual start and transfer features shall be provided at the fire command center. Exception: In Group I-2, Condition 2, manual start and transfer features for the critical branch of the emergency power are not required to be provided at the fire command center. 

[F] 403.4.8.2 Fuel line piping protection. Fuel lines supplying a generator set inside a building shall be separated from areas of the building other than the room the generator is located in by an approved method or assembly that has a fire-resistance rating of not less than 2 hours. Where the building is protected throughout with an automatic sprinkler system installed in accordance with Section 903.3.1.1 or 903.3.1.2, the required fire-resistance rating shall be reduced to 1 hour. 

[F] 403.4.8.3 Emergency power loads. The following are classified as emergency power loads: 1. Power and lighting for the fire command center required by Section 403.4.6. 2. Ventilation and automatic fire detection equipment for smokeproof enclosures. 3. Elevators. 4. Where elevators are provided in a high-rise building for accessible means of egress, fire service access or occupant self-evacuation, the standby power system shall also comply with Sections 1009.4, 3007 or 3008, as applicable. 5. Exit signs and means of egress illumination required by Chapter 10. 6. Elevator car lighting. 7. Emergency voice/alarm communication systems. 8. Automatic fire detection systems. 9. Fire alarm systems. 10. Electrically powered fire pumps. 11. Smoke control equipment 

[F] Section 403.5.3 Stairway door operation is replaced as follows: 

[F] 403.5.3 Stairway door operation. Stairway doors other than the exit discharge doors shall be permitted to be locked from the stairway side when signage is provided in accordance with Section 1023.9.2 of the International Building Code. Stairway doors that are locked from the stairway side shall unlock simultaneously without unlatching upon a fire alarm or loss of power or a signal from the fire command center. 

 [F] Section 403.5.7 Accessible means of egress elevator and area of rescue assistance and subordinate sections are added: 

[F] 403.5.7 Accessible means of egress elevator and area of rescue assistance. An accessible means of egress elevator complying with Section 1009.4 shall be provided in high-rise buildings and shall be accessed directly from an area of rescue assistance. Each area of rescue assistance shall comply with Section 1009.6 and shall be separated from the remainder of the story by a smoke barrier complying with Section 709. Exceptions: 2019 DENVER AMENDMENTS TO THE 2018 INTERNATIONAL BUILDING CODE 101 1. Areas of rescue assistance are not required at the elevator in Group S-2 open parking garages; or in Group I-2 or I-3 occupancies. 2. In Group R1, R2, and I1 occupancies, an elevator complying with Section 1009.4 with a fire ​resistive corridor providing direct access to the elevator from all dwelling units or sleeping units shall be permitted to serve as a required accessible means of egress. 3. Areas of rescue assistance at elevators in enclosed parking garages shall be permitted to be enclosed in accordance with Section 509.4.2. 403.5.7.1 Travel Distance. The maximum travel distance from any accessible space to an accessible means of egress elevator complying with this section shall not exceed the exit access travel distance permitted for the occupancy in accordance with Section 1017.1. 403.5.7.2 Occupant evacuation elevators. Where occupant evacuation elevators are provided in accordance with Section 403.6.2, areas of rescue assistance shall be located at these elevators. 403.5.7.3 Area of rescue assistance pressurization. The area of rescue assistance at the accessible means of egress elevator shall be pressurized by the transfer of air from the pressurized hoist way through the leakage at the elevator doors.​​