Current textIn force on Jan. 27, 2020Source: eCFR

§ 325.27 Use of a windscreen.

Current wording, first on file in the 1996 annual edition.

eCFR as of January 27, 2020 ↗

49 CFR § 325.27 — Use of a windscreen.. Text in force on January 27, 2020. This wording effective October 1, 1996 to present. Source: eCFR as of January 27, 2020, https://www.ecfr.gov/on/2020-01-27/title-49/section-325.27. Retrieved from FMCSR.com, https://fmcsr.com/reg/325.27?asof=2020-01-27, on October 26, 2026. Unofficial compilation; verify against the official source.

A properly installed windscreen, of the type recommended by the manufacturer of the Sound Level Measurement System, shall be used during the time that noise emission measurements are being taken.

Amendment history

1 distinct wording on file since Oct. 1, 1996

Oct. 1, 1996 → presentannual editions 1996–2016viewing

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.