[Code of Federal Regulations]
[Title 30, Volume 1]
[Revised as of July 1, 2002]
From the U.S. Government Printing Office via GPO Access
[CITE: 30CFR27.6]

[Page 142]
 
                       TITLE 30--MINERAL RESOURCES
 
  CHAPTER I--MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
 
PART 27--METHANE-MONITORING SYSTEMS--Table of Contents
 
                      Subpart A--General Provisions
 
Sec. 27.6  Certification of components.

    In accordance with Sec. 27.4, manufacturers of components may apply 
to MSHA to issue a letter of certification. To qualify for 
certification, electrical components shall conform to the prescribed 
inspection and test requirements and the construction thereof shall be 
adequately covered by specifications officially recorded and filed with 
MSHA. Letters of certification may be cited to fabricators of equipment 
intended for use in a certified methane-monitoring system as evidence 
that further inspection and test of the components will not be required.