Daily eCFR

§ 325.21 Scope of the rules in this subpart.

49 CFR 325.21

Citation49 CFR 325.21

CorpusDaily eCFR

Displayed edition2026-09-17

Last updated2026-09-17

§ 325.21 Scope of the rules in this subpart.

The rules in this subpart specify criteria for sound level measurement systems which are used to make the sound level measurements specified in subpart D and subpart E of this part.