2021 - International Building Code, with the following exceptions:
- Replace the following with the respective section from the 2024 International Building Code – Chapter 2: Definitions – Flammable Gas.
- Replace the following sections with the respective section from the 2024 International Building Code – Table 307.1(1), 307.4, 307.5, 414.2.5, and Table 414.5.1.
- Add the following sections from the 2024 International Building Code – 414.2.5.4 and Table 414.2.5.4.
March 17, 2025
2021 - International Mechanical Code, with the following exceptions:
- Replace the following sections with the respective section from the 2024 International Mechanical Code – Table 1103.1, 1104.3.1, 1104.3.2, 1106.3, 1106.4, 1106.4.1 through 1106.4.3, Table 1106.4.2, Table 1107.4, Table 1107.5, 1107.7, 1109.2.2, 1109.2.3, 1109.2.6, 1109.2.7, 1109.3, 1109.3.1, 1109.3.2, 1110.3, and 1110.5.
- Add the following sections from the 2024 International Mechanical Code – 1101.2.1 and 1110.3.1.
- Remove the following sections from the 2021 International Mechanical Code – Table 1104.3.2, 1109.4, 1109.4.1, 1109.4.2, 1109.7, 1110.5.1, 1110.5.2, 1110.6, 1110.7.
- Add the following to the 2021 International Mechanical Code – Chapter 15: Referenced Standards – ASHRAE 15-2022, ASHRAE 34-2022, and ASTM A333-18.
- Replace the following from the 2021 International Mechanical Code – Chapter 15: Referenced Standards – UL/CSA 60335-2-40 – 2022 and UL/CSA 60335-2-89 – 2021.
March 17, 2025
2021 - International Fire Code , with the following exceptions:
- Replace the following with the respective section from the 2024 International Fire Code – Chapter 2: Definitions – Flammable Gas.
- Replace the following sections with the respective section from the 2024 International Fire Code – 608.17, 608.18, 608.18.1 through 608.18.3, Table 608.18.2, Table 911.1, 3307.2.1, Table 5003.1.1(1), Table 5003.1.1(3), 5003.8.3.5, 5003.11, 5003.11.1, and 5003.11.2.
- Replace the following sections with the indicated section from the 2024 International Fire Code: 5003.11.3 with 5003.11.1.1 and 5003.11.3.1 through 5003.11.3.11 with 5003.11.1.1.1 through 5003.11.1.1.11.
- Add the following sections from the 2024 International Fire Code – 5003.8.3.5.4, Table 5003.11.2, and 5003.11.2.1.
March 17, 2025
ANSI/ASHRAE/IES Standard 90.1 – 2013 Energy Standard for Buildings except Low–Rise Residential Buildings with exceptions permitted to:
- 6.5.1 – Economizers,
- 8.4.2 – Automatic Receptable Control, and
- 8.4.3 – Electrical Energy Monitoring.
July 1, 2022