The ICC/IBC (International Code Council / Building Code), are currently under revision, with consultation for public comment to 16th July 2018 , in particular IBC Fire Safety, the principle building code used in the USA (referred to as ‘International’ code). Proposed modifications include in particular fire protection of timber constructions up to 18 storeys and modifications concerning fire safety requirements for external walls. IBC currently relies mainly for cladding materials on the NFPA 285 (Standard Fire Test Method for Evaluation of Fire Propagation Characteristics of Exterior Non-Load-Bearing Wall Assemblies Containing Combustible Components), a two-storey test of vertical and horizontal fire spread, including testing whether flames penetrate into a window. A concern in the current IBC proposals, according to Marcelo Hirschler (Fire Safety & Technology Bulletin), is exemptions for some external cladding materials on sprinklered buildings, whereas sprinklers inside the building will not act in time for external cladding fires. US NFPA 70 (NEC National Electrical Code) modifications are open to public comments to 30th August 2018
ICC – IBC public consultation to 16th July 2018 https://www.iccsafe.org/codes-tech-support/codes/code-development-process/2018-2019-group-a/ IBC – Fire Safety proposals for consultation (340 pages) http://media.iccsafe.org/codes/2018-2019/GroupA/CAH/IBC-FS.pdf
NFPA 70 public consultation page https://www.nfpa.org/codes-and-standards/all-codes-and-standards/list-of-codes-and-standards/detail?code=70&tab=nextedition deadline 30th August 2018