[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: 30CFR33.10]

[Page 155]
 
                       TITLE 30--MINERAL RESOURCES
 
  CHAPTER I--MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
 
PART 33--DUST COLLECTORS FOR USE IN CONNECTION WITH ROCK DRILLING IN COAL MINES--Table of Contents
 
                      Subpart A--General Provisions
 
Sec. 33.10  Certificates of approval or performance.

    (a) Upon completion of an investigation, MSHA will issue to the 
applicant either a certificate or a written notice of disapproval, as 
they case may require. No informal notification of approval will be 
issued. If a certificate is issued, no test data or detailed results of 
tests will accompany it. If a notice of disapproval is issued, it will 
be accompanied by details of the defects, with a view to possible 
correction. MSHA will not disclose, except to the applicant, any 
information on a unit or system upon which a notice of disapproval has 
been issued.
    (b) A certificate will be accompanied by a list of the drawings and 
specifications covering the details of design and construction of the 
unit or system, including the electrical parts, if applicable, upon 
which the certificate is based. Applicants shall keep exact duplicates 
of the drawings and specifications submitted and the list of drawing 
numbers referred to in Sec. 33.6(d)(1) that relate to the certified unit 
or system, and these are to be adhered to exactly in production.