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Flood Resistant Provisions of the 2015 International Codes (2015)

The 2015 edition of the International Codes (I-Codes) contains provisions that meet or exceed the minimum flood-resistant design and construction requirements of the NFIP for buildings and structures. This page contains the following documents, prepared by FEMA, related to the flood provisions of the 2015 I-Codes:

- A compilation of flood resistant provisions of the 2015 I-Codes (IBC, IRC, IEBC, IMC, IPC, IFGC, IFC, ISPSC, IPSDC, and ICC Performance Code)

- A summary of changes to the flood provisions from the 2012 I-Codes

- A checklist that can be used to guide floodplain managers, building officials, and designers as they compare the flood provisions of the 2015 I-Codes and ASCE 24-14 to the minimum requirements of the NFIP. It is based on the standard checklist used by FEMA and States to review local floodplain management regulations/ordinances to determine whether such regulations and ordinances are complete for the purpose of participating in the NFIP

- Highlights of ASCE 24-14, Flood Resistant Design and Construction, a referenced standard in the 2015 IBC and IRC

Flood Resistant Provisions Of the 2015 International Codes

Flood Resistant Provisions of the 2015 International Codes

Highlights of ASCE 24-14 Flood Resistant Design and Construction

The American Society of Civil Engineers (ASCE) 24-14 is a referenced standard in the 2015 International Building Code® (IBC) and the 2015 International Residential Code® (IRC). Building and structures within the scope of the IBC proposed to be constructed in flood hazard areas must be designed in accordance with ASCE 24-14. The IRC requires dwellings in floodways to be designed in accordance with ASCE 24-14 and includes an alternative that allows communities to require homes in any flood zone to be designed in accordance with ASCE 24-15. Highlights of ASCE 24-14 that complement the NFIP minimum requirements include Building Performance; Flood-Damage Resistant Materials; Utilities and Service Equipment and Siting Considerations.

NFIP 2015 I-Codes and ASCE 24 Checklist

This checklist will guide floodplain managers, building officials and designers as they compare the requirements of the National Flood Insurance Program (NFIP) to the flood provisions of the International Building Code© (IBC), the International Mechanical Code© (IMC), the International Plumbing Code© (IPC), the International Fuel Gas Code© (IFGC), the International Residential Code© (IRC), the International Existing Building Code© (IEBC), and the referenced standard, ASCE 24-14 Flood Resistant Design and Construction.

Summary of Changes from the 2015 I-Codes

2015 I-Code Summary of Changes from 2012 I-Codes

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Last updated August 3, 2020