Pending Hazardous Materials (Hazmat) Interpretations
Pending interpretation letters that are under review by the Office of Hazardous Materials Safety are shown in the table below. To view the interpretation request document, click "View" for the corresponding interpretation. To submit comments on an interpretation under review, click the "Submit Comment" link for the corresponding interpretation. Finally, comment submissions will be accepted for 30 days after the pending interpretation letter is posted.
| Reference # | Requestor | Request Letter | Comment Submission Deadline | Submit Comments |
|---|---|---|---|---|
| 26-0098 | The Hartford Steam Boiler | View | 9/14/26 | Submit Comment |
| 26-0099 | Mustapha's Engineering Works Limited | View | 9/14/26 | Submit Comment |
| 26-0100 | LNK Energies | View | 9/14/26 | Submit Comment |
| 26-0101 | Optimus Technologies, Inc. | View | 9/14/26 | Submit Comment |
| 26-0102 | Arrowhead Industrial Services USA, Inc. | View | 9/14/26 | Submit Comment |
| 26-0103 | Thompson Gas | View | 9/14/26 | Submit Comment |
| 26-0104 | Matson | View | 9/14/26 | Submit Comment |
| 26-0105 | Institute of Makers of Explosives (IME) | View | 9/14/26 | Submit Comment |
| 26-0106 | Department of Energy (DOE) | View | 9/14/26 | Submit Comment |
| 26-0107 | Linde | View | 9/21/26 | Submit Comment |
| 26-0108 | Seaspan | View | 9/28/26 | Submit Comment |
| 26-0109 | Exhaust Center, Inc. | View | 9/28/26 | Submit Comment |
| 26-0110 | Council on Safe Transportation of Hazardous Articles (COSTHA) | View | 9/28/26 | Submit Comment |
| 26-0111 | Colorado State Patrol | View | 9/28/26 | Submit Comment |
Last updated: Friday, August 28, 2026