[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: 30CFR23.11]

[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. 23.11  How approvals are granted.

    All approvals are granted by official letter from MSHA. A device 
will be approved under this part only when the testing engineers have 
judged that it has met the requirements of the part and MSHA's records 
are complete, including drawings from the manufacturer that show the 
device as it is to be commercially made. Individual parts of devices 
will not be approved. No verbal reports of the investigation will be 
given and no informal approvals will be granted. As soon as the 
manufacturer has received the formal approval, he shall be free to 
advertise his device as permissible.

[Sched. 9B, 4 FR 1555, Apr. 11, 1939, as amended by Supp. 1, 20 FR 2975, 
May 4, 1955]