# Hazardous Materials: Incorporation of ASME Code Section XII and the National Board Inspection Code

**Action Urgency Score:** 30/100

| Field | Value |
|---|---|
| Agency | Transportation Department; Pipeline and Hazardous Materials Safety Administration |
| Type | Final rule |
| Action | Final rule. |
| Published | 2026-09-28 |
| Effective | 2026-10-28 |
| Significant | No |
| CFR parts | 49 CFR 107, 49 CFR 171, 49 CFR 173, 49 CFR 178, 49 CFR 179 |
| Summary | PHMSA is amending the Hazardous Materials Regulations (HMR) to incorporate by reference and authorize the use of the 2015 edition of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code, Section XII--Rules for Construction and Continued Service of Transport Tanks for the construction and continued service of certain specification cargo tank motor vehicles (CTMVs), cryogenic portable tanks, and multi-unit tank car tanks. PHMSA is also amending the HMR to incorporate by reference and authorize the use of the 2015 edition of the National Board of Boiler and Pressure |
| Document number | 2026-19741 |

## Why this score
- Final rule.

Source: Federal Register API (Office of the Federal Register) (https://www.federalregister.gov/documents/2026/09/28/2026-19741/hazardous-materials-incorporation-of-asme-code-section-xii-and-the-national-board-inspection-code). Last refreshed: 2026-11-04T21:40:49.974Z.
Data from the Federal Register API; the published Federal Register document is authoritative. Informational only, not legal advice.