[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: 30CFR18.15]

[Page 94]
 
                       TITLE 30--MINERAL RESOURCES
 
  CHAPTER I--MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
 
PART 18--ELECTRIC MOTOR-DRIVEN MINE EQUIPMENT AND ACCESSORIES--Table of Contents
 
                      Subpart A--General Provisions
 
Sec. 18.15  Changes after approval or certification.

    If an applicant desires to change any feature of approved equipment 
or a certified component, he shall first obtain MSHA's concurrence 
pursuant to the following procedure:
    (a) Application shall be made as for an original approval or letter 
of certification requesting that the existing approval or certification 
be extended to cover the proposed change(s) and shall be accompanied by 
drawings, specifications, and related information, showing the change(s) 
in detail.
    (b) The application will be examined by MSHA to determine whether 
inspection or testing will be required. Testing will be required if 
there is a possibility that the change(s) may adversely affect safety.
    (c) If the change(s) meets the requirements of this part, a formal 
extension of approval or certification will be issued, accompanied by a 
list of new or revised drawings, specifications, and related information 
to be added to those already on file for the original approval or 
certification.
    (d) Revisions in drawings or specifications that do not involve 
actual change in the explosion-proof features of equipment may be 
handled informally.

[43 FR 12313, Mar. 24, 1978, as amended at 52 FR 17514, May 8, 1987]