[Code of Federal Regulations]
[Title 40, Volume 22]
[Revised as of July 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR211.211]

[Page 182]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 211--PRODUCT NOISE LABELING--Table of Contents
 
                  Subpart B--Hearing Protective Devices
 
Sec. 211.211  Compliance with labeling requirement.

    (a) All hearing protective devices manufactured after the effective 
date of this regulation, and meeting the applicability requirements of 
Sec. 211.201, must be labeled according to this subpart, and must comply 
with the Labeled Values of mean attenuation.
    (b) A manufacturer must take into account both product variability 
and test-to-test variability when labeling his devices in order to meet 
the requirements of paragraph (a) of this section. A specific category 
is considered when the attenuation value at the tested one-third octave 
band is equal to or greater than the Labeled Value, or mean attenuation 
value, stated in the supporting information required by Sec. 211.204-4, 
for that tested frequency. The attenuation value must be determined 
according to the test procedures of Sec. 211.206. The Noise Reduction 
Rating for the label must be calculated using the Labeled Values of mean 
attenuation that will be included in the supporting information required 
by Sec. 211.204-4.

[47 FR 57717, Dec. 28, 1982]