---
kind: "section"
citation: "49 C.F.R. § 325.27"
title: "49"
number: "325.27"
heading: "Use of a windscreen."
url: "https://uscodex.org/cfr/49/325.27"
---

# §325.27. Use of a windscreen.


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.


## Notes

### Authority

Authority: 42 U.S.C. 4917; 49 U.S.C. 301; and 49 CFR 1.87.

### Source

Source: 40 FR 42437, Sept. 12, 1975, unless otherwise noted.