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Reading the regulations as they stood on October 1, 1996. Current text may differ.Switch to current
Historical textIn force on Oct. 1, 1996Source: annual CFR edition 1996

§ 391.93 Implementation schedule.

Wording first on file in the 1996 annual edition, superseded by the 1998 annual edition. The section was then removed.

govinfo, 1996 edition ↗
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, 1996 and Oct. 1, 1996 would not appear until the next edition, so check the citations below and the Federal Register for exact effective dates.
49 CFR § 391.93 — Implementation schedule.. Text in force on October 1, 1996. This wording effective October 1, 1996 to October 1, 1998. Source: govinfo, 1996 edition, https://www.govinfo.gov/app/details/CFR-1996-title49-vol4/CFR-1996-title49-vol4-sec391-93. Retrieved from FMCSR.com, https://fmcsr.com/reg/391.93?asof=1996-10-01, on October 26, 2026. Unofficial compilation; verify against the official source.

(a) All motor carriers shall have a drug testing program that conforms to this subpart and 49 CFR part 40 by the date a motor carrier begins motor carrier operations.

(b) All motor carriers shall require all collection personnel to implement the split sample collection procedures required under § 40.25(f)(10) of this title by August 15, 1994.

(c) An employer may begin complying with the requirements of paragraph (b) of this section on or after March 17, 1994.

[59 FR 7514, Feb. 15, 1994]

Amendment history

1 distinct wording on file since Oct. 1, 1996
  1. Oct. 1, 1996 → Oct. 1, 1998annual edition 1996viewing
    [59 FR 7514, Feb. 15, 1994]

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.