[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: 30CFR36.12]

[Page 169]
 
                       TITLE 30--MINERAL RESOURCES
 
  CHAPTER I--MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
 
PART 36--APPROVAL REQUIREMENTS FOR PERMISSIBLE MOBILE DIESEL-POWERED TRANSPORTATION EQUIPMENT--Table of Contents
 
                      Subpart A--General Provisions
 
Sec. 36.12  Changes after certification.

    If an applicant desires to change any feature of certified 
equipment, he shall first obtain MSHA's approval of the change, pursuant 
to the following procedure:
    (a) Application shall be made as for an original certificate of 
approval, requesting that the existing certification be extended to 
cover the proposed changes and shall be accompanied by drawings, 
specifications, and related data, showing the changes in detail.
    (b) The application will be examined by MSHA to determine whether 
inspection and testing of the modified equipment or component or 
subassembly will be required. Testing will be necessary if there is a 
possibility that the modification may affect adversely the performance 
of the equipment. MSHA will inform the applicant whether such testing is 
required and the component, subassembly, and related material to be 
submitted for that purpose.
    (c) If the proposed modification meets the requirements of this 
part, a formal extension of certification will be issued, accompanied by 
a list of new and corrected drawings and specifications to be added to 
those already on file as the basis for the extension of certification.

[Schedule 31, 26 FR 645, Jan. 24, 1961, as amended at 52 FR 17516, May 
8, 1987]