40 C.F.R. § 211.201 Applicability.
Title 40 - Protection of Environment
Unless this regulation states otherwise, the provisions of this subpart apply to all hearing protective devices manufactured after the effective date of this regulation. (See §211.203(m) for definition of “hearing protective device.”)
Title 40: Protection of Environment
PART 211—PRODUCT NOISE LABELING
Subpart B—Hearing Protective Devices
§ 211.201 Applicability.