Current textIn force on Sept. 30, 2004Source: annual CFR editions 1996–2016
§ 393.91 Buses, aisle seats prohibited.
Current wording, first on file in the 1996 annual edition.
Before Jan. 1, 2017 the record is one snapshot per annual CFR edition, revised as of October 1. This is the 2003 edition's wording. An amendment that took effect between Oct. 1, 2003 and Sept. 30, 2004 would not appear until the next edition, so check the citations below and the Federal Register for exact effective dates.
49 CFR § 393.91 — Buses, aisle seats prohibited.. Text in force on September 30, 2004. This wording effective October 1, 1996 to present. Source: govinfo, 2003 edition, https://www.govinfo.gov/app/details/CFR-2003-title49-vol4/CFR-2003-title49-vol4-sec393-91. Retrieved from FMCSR.com, https://fmcsr.com/reg/393.91?asof=2004-09-30, on October 26, 2026. Unofficial compilation; verify against the official source.
No bus shall be equipped with aisle seats unless such seats are so designed and installed as to automatically fold and leave a clear aisle when they are unoccupied. No bus shall be operated if any seat therein is not securely fastened to the vehicle.
[53 FR 49402, Dec. 7, 1988]
Amendment history
1 distinct wording on file since Oct. 1, 1996- [53 FR 49402, Dec. 7, 1988]
A new entry appears whenever the regulatory words change between government snapshots. Day-precise from the eCFR (2017 onward); before that, one snapshot per annual CFR edition (revised as of October 1). Bracketed citations are the Federal Register history printed with the section.