[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: 30CFR18.22]

[Page 94-95]
 
                       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 B--Construction and Design Requirements
 
Sec. 18.22  Boring-type machines equipped for auxiliary face ventilation.

    Each boring-type continuous-mining machine that is submitted for 
approval shall be constructed with an unobstructed continuous space(s) 
of not less than 200 square inches total cross-sectional area on or 
within the machine to

[[Page 95]]

which flexible tubing may be attached to facilitate auxiliary face 
ventilation.