United States. Mine Safety and Health Administration
Author
Series
Program policy letter volume no. P11-V-14
Publisher
U.S. Department of Labor, Mine Safety and Health Administration]
Pub. Date
2011.
Language
English
8) Procedure for permitting the use of belt air to ventilate working sections of underground coal mines
Author
Series
Procedure instruction letter volume no. I12-V-14
Publisher
[U.S. Department of Labor, Mine Safety and Health Administration]
Pub. Date
2012.
Language
English
9) Reissue of I10-V-12, maintaining methane monitors in proper operating condition for mining equipment
Author
Series
Procedure instruction letter volume no. I12-V-12
Publisher
[U.S. Department of Labor, Mine Safety and Health Administration]
Pub. Date
2012.
Language
English
Author
Series
Procedure instruction letter volume no. I12-V-08
Publisher
[U.S. Department of Labor, Mine Safety and Health Administration]
Pub. Date
2012.
Language
English
Author
Series
Program policy letter volume no. P13-III-01
Publisher
[U.S. Department of Labor, Mine Safety and Health Administration]
Pub. Date
2013.
Language
English
Author
Series
Program policy letter volume no. P11-V-10
Publisher
U.S. Department of Labor, Mine Safety and Health Administration]
Pub. Date
2011.
Language
English
Author
Series
Program policy letter volume no. P11-V-13
Publisher
U.S. Department of Labor, Mine Safety and Health Administration]
Pub. Date
2011.
Language
English
Author
Series
Procedure instruction letter volume no. I12-V-09
Publisher
[U.S. Department of Labor, Mine Safety and Health Administration]
Pub. Date
2012.
Language
English
Author
Series
Program policy letter volume no. P11-V-09
Publisher
U.S. Department of Labor, Mine Safety and Health Administration]
Pub. Date
2011.
Language
English
Author
Series
Program policy letter volume no. P13-V-1
Publisher
U.S. Department of Labor, Mine Safety and Health Administration]
Pub. Date
2013.
Language
English
Author
Series
Procedure instruction letter volume no. I12-V-17
Publisher
[U.S. Department of Labor, Mine Safety and Health Administration]
Pub. Date
2012.
Language
English
Author
Series
Procedure instruction letter volume no. I12-III-01
Publisher
[U.S. Department of Labor, Mine Safety and Health Administration]
Pub. Date
2012.
Language
English
Author
Series
Program policy letter volume no. P11-V-11
Publisher
U.S. Department of Labor, Mine Safety and Health Administration]
Pub. Date
2011.
Language
English
Author
Series
Procedure instruction letter volume no. I12-V-19
Publisher
[U.S. Department of Labor, Mine Safety and Health Administration]
Pub. Date
2012.
Language
English