[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: 30CFR23.10]

[Page 139]
 
                       TITLE 30--MINERAL RESOURCES
 
  CHAPTER I--MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
 
PART 23--TELEPHONES AND SIGNALING DEVICES--Table of Contents
 
Sec. 23.10  Material required for MSHA records.

    In order that MSHA may know exactly what it has tested and approved, 
it keeps detailed records covering each investigation. These records 
include drawings and actual equipment as follows:
    (a) Drawings. The original drawings submitted with the application 
for the tests and the final drawings which the manufacturer must submit 
to MSHA before the approval is granted, to show the details of the 
device as approved. These drawings are used to identify the device in 
the approval and as a means of checking the future commercial product of 
the manufacturer.
    (b) Actual equipment. If MSHA so desires, parts of the devices that 
are used in the tests will be retained as records of the equipment 
submitted. If the device is approved, MSHA reserves the right to require 
the manufacturer to submit one, with the approval plate attached and 
without cost to MSHA, as a record of his commercial product.