§FMCSR.com
Historical textIn force on Oct. 1, 2007Source: annual CFR editions 2001–2007

§ 40.95 What criteria do laboratories use to establish that a specimen is adulterated?

Wording in the annual edition revised as of Oct. 1, 2001, superseded by the 2008 annual edition.

govinfo, 2007 edition ↗
Before Jan. 1, 2017 the record is one snapshot per annual CFR edition, revised as of October 1. This is the 2007 edition's wording. An amendment that took effect between Oct. 1, 2007 and Oct. 1, 2007 would not appear until the next edition, so check the citations below and the Federal Register for exact effective dates.
49 CFR § 40.95 — What criteria do laboratories use to establish that a specimen is adulterated?. Text in force on October 1, 2007. This wording effective October 1, 2001 to October 1, 2008. Source: govinfo, 2007 edition, https://www.govinfo.gov/app/details/CFR-2007-title49-vol1/CFR-2007-title49-vol1-sec40-95. Retrieved from FMCSR.com, https://fmcsr.com/reg/40.95?asof=2007-10-01, on October 26, 2026. Unofficial compilation; verify against the official source.

(a) As a laboratory, you must consider the primary specimen to be adulterated if you determine that—

(1) A substance that is not expected to be present in human urine is identified in the specimen;

(2) A substance that is expected to be present in human urine is identified at a concentration so high that it is not consistent with human urine; or

(3) The physical characteristics of the specimen are outside the normal expected range for human urine.

(b) In making your determination under paragraph (a) of this section, you must apply the criteria in current HHS requirements or specimen validity guidance.

Amendment history

4 distinct wordings on file since Oct. 1, 1996
  1. May 2, 2023 → June 1, 2023eCFR, day-precisediff vs. previous
    [73 FR 35970, June 25, 2008]
  2. Oct. 1, 2008 → May 2, 2023annual editions 2008–2016diff vs. previous
    [73 FR 35970, June 25, 2008]
  3. Oct. 1, 2001 → Oct. 1, 2008annual editions 2001–2007diff vs. previousviewing
  4. 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.