[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: 30CFR75.221]

[Page 465-466]
 
                       TITLE 30--MINERAL RESOURCES
 
  CHAPTER I--MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
 
PART 75--MANDATORY SAFETY STANDARDS--UNDERGROUND COAL MINES--Table of Contents
 
                         Subpart C--Roof Support
 
Sec. 75.221  Roof control plan information.

    (a) The following information shall be included in each roof control 
plan:
    (1) The name and address of the company.
    (2) The name, address, mine identification number and location of 
the mine.
    (3) The name and title of the company official responsible for the 
plan.
    (4) A typical columnar section of the mine strata which shall--
    (i) Show the name and the thickness of the coalbed to be mined and 
any persistent partings;
    (ii) Identify the type and show the thickness of each stratum up to 
and including the main roof above the coalbed and for distance of at 
least 10 feet below the coalbed; and
    (iii) Indicate the maximum cover over the area to be mined.
    (5) A description and drawings of the sequence of installation and 
spacing of supports for each method of mining used.
    (6) When an ATRS system is used, the maximum distance that an ATRS 
system is to be set beyond the last row of permanent support.
    (7) When tunnel liners or arches are to be used for roof support, 
specifications and installation procedures for the liners or arches.
    (8) Drawings indicating the planned width of openings, size of 
pillars, method of pillar recovery, and the sequence of mining pillars.
    (9) A list of all support materials required to be used in the roof, 
face and rib control system, including, if roof bolts are to be 
installed--
    (i) The length, diameter, grade and type of anchorage unit to be 
used;
    (ii) The drill hole size to be used; and
    (iii) The installed torque or tension range for tensioned roof 
bolts.
    (10) When mechanically anchored tensioned roof bolts are used, the 
intervals at which test holes will be drilled.
    (11) A description of the method of protecting persons--
    (i) From falling material at drift openings; and

[[Page 466]]

    (ii) When mining approaches within 150 feet of an outcrop.
    (b) Each drawing submitted with a roof control plan shall contain a 
legend explaining all symbols used and shall specify the scale of the 
drawing which shall not be less than 5 feet to the inch or more than 20 
feet to the inch.
    (c) All roof control plan information, including drawings, shall be 
submitted on 8\1/2\ by 11 inch paper, or paper folded to this size.

[53 FR 2375, Jan. 27, 1988, as amended at 60 FR 33723, June 29, 1995]