Historical textIn force on Sept. 30, 2010Source: annual CFR editions 2001–2009
§ 382.311 Follow-up testing.
Wording in the annual edition revised as of Oct. 1, 2001, superseded by the 2010 annual edition.
Before Jan. 1, 2017 the record is one snapshot per annual CFR edition, revised as of October 1. This is the 2009 edition's wording. An amendment that took effect between Oct. 1, 2009 and Sept. 30, 2010 would not appear until the next edition, so check the citations below and the Federal Register for exact effective dates.
49 CFR § 382.311 — Follow-up testing.. Text in force on September 30, 2010. This wording effective October 1, 2001 to October 1, 2010. Source: govinfo, 2009 edition, https://www.govinfo.gov/app/details/CFR-2009-title49-vol5/CFR-2009-title49-vol5-sec382-311. Retrieved from FMCSR.com, https://fmcsr.com/reg/382.311?asof=2010-09-30, on October 26, 2026. Unofficial compilation; verify against the official source.
The requirements for follow-up testing must be performed in accordance with 49 CFR part 40, Subpart O.
Amendment history
3 distinct wordings on file since Oct. 1, 1996- Oct. 1, 1996 → Oct. 1, 2001annual editions 1996–2000
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.