In Friday 26th October’s Federal Register, NHTSA published a Notice of Proposed Rulemaking (NPRM) to update 49 CFR, Part 595 – Make Inoperative Exemptions. See http://1.usa.gov/R8c8rE.
Part 595, Subpart C has provisions for vehicles that are modified to accommodate people with disabilities. The modifications may take a vehicle out of compliance with a FMVSS and Subpart C contains exemptions that allow this.
This NPRM is in response to a Petition for Rulemaking following the publication of FMVSS 226 – Occupant Ejection Mitigation and would add a new exemption to allow changes to the vehicle seat which may take it out of compliance with 226. (FMVSS 214 is already included).
They propose to make this effective within 180 days of publication of the Final Rule. (Note: the FMVSS 226 phase-in starts on 1st September 2013).
Comments can be submitted in the docket ( NHTSA–2012–0149) until December 26th 2012.