Historical textIn force on Oct. 1, 1997Source: annual CFR editions 1996–2004

§ 393.63 Windows, markings.

Wording first on file in the 1996 annual edition, superseded by the 2005 annual edition.

govinfo, 1996 edition ↗

Compare with

Before Jan. 1, 2017 the record is one snapshot per annual CFR edition, revised as of October 1. This is the 1996 edition's wording. An amendment that took effect between Oct. 1, 1997 and Oct. 1, 1997 would not appear until the next edition, so check the citations below and the Federal Register for exact effective dates. govinfo does not publish the 1997 edition of Parts 300–399 in machine-readable form, so the 1996 text is shown for that year.

49 CFR § 393.63 — Windows, markings.. Text in force on October 1, 1997. This wording effective October 1, 1996 to October 1, 2005. Source: govinfo, 1996 edition, https://www.govinfo.gov/app/details/CFR-1996-title49-vol4/CFR-1996-title49-vol4-sec393-63. Retrieved from FMCSR.com, https://fmcsr.com/reg/393.63?asof=1997-10-01, on October 26, 2026. Unofficial compilation; verify against the official source.

(a) On a bus manufactured before September 1, 1973, each bus push-out window and any other bus escape window glazed with laminated safety glass required in § 393.61 shall be identified as such by clearly legible and visible signs, lettering, or decalcomania. Such marking shall include appropriate wording to indicate that it is an escape window and also the method to be used for obtaining emergency exit.

(b) On a bus manufactured on and after September 1, 1973, emergency exits required in § 393.61 shall be marked to conform to Federal Motor Vehicle Safety Standard No. 217 (§ 571.217), of this title.

(c) A bus manufactured before September 1, 1973, may mark emergency exits to conform to Federal Motor Vehicle Safety Standard No. 217 (§ 571.217), of this title in lieu of conforming to paragraph (a) of this section.

[37 FR 11678, June 10, 1972]

Amendment history

2 distinct wordings on file since Oct. 1, 1996

Oct. 1, 2005 → presentannual editions 2005–2016diff vs. previous
Oct. 1, 1996 → Oct. 1, 2005annual editions 1996–2004viewing
[37 FR 11678, June 10, 1972]

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.