Procedure Instruction Letters
| 2019 | |
|---|---|
| Procedure for Permitting the Use of Belt Air to Ventilate Working Sections of Underground Coal Mines | |
| 2016 | |
|---|---|
| Reissue of I12-V-03 and I12-IV-04 - Use of Digital Cameras and the Storage and Preservation of Digital Images | |
| 2012 | |
|---|---|
| Reissue of I10-V-09 - Procedures for Evaluation of Requests to Make Extended Cuts With Remote Controlled Continuous Mining Machines | |
| District Field Change Requests for Adding Proximity Detection Systems | |
| 2011 | |
|---|---|
| Compliance Procedures for the Hazard Communication Standard | |