§FMCSR.com
Historical textIn force on Sept. 17, 2020Source: eCFR

§ 40.95 What are the adulterant cutoff concentrations for initial and confirmation tests?

Wording in the annual edition revised as of Oct. 1, 2008, superseded May 2, 2023.

eCFR as of September 17, 2020 ↗
49 CFR § 40.95 — What are the adulterant cutoff concentrations for initial and confirmation tests?. Text in force on September 17, 2020. This wording effective October 1, 2008 to May 2, 2023. Source: eCFR as of September 17, 2020, https://www.ecfr.gov/on/2020-09-17/title-49/section-40.95. Retrieved from FMCSR.com, https://fmcsr.com/reg/40.95?asof=2020-09-17, on October 26, 2026. Unofficial compilation; verify against the official source.

(a) As a laboratory, you must use the cutoff concentrations for the initial and confirmation adulterant testing as required by the HHS Mandatory Guidelines and you must use two separate aliquots—one for the initial test and another for the confirmation test.

(b) As a laboratory, you must report results at or above the cutoffs (or for pH, at or above or below the values, as appropriate) as adulterated and provide the numerical value that supports the adulterated result.

[73 FR 35970, June 25, 2008]

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. previousviewing
    [73 FR 35970, June 25, 2008]
  3. Oct. 1, 2001 → Oct. 1, 2008annual editions 2001–2007diff vs. previous
  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.