PHMSA is amending the Hazardous Materials Regulations (HMR) by streamlining the classification and approval process for transporting certain low-hazard fireworks, revising the criteria for small arms cartridges to include tracer ammunition as eligible for self- classification, designating the PHMSA portal as the sole method to submit applications for all explosives approvals, and authorizing voluntary termination of an explosive approval by the approval holder.
Source
https://www.federalregister.gov/documents/2026/06/02/2026-10962/hazardous-materials-streamlining-requirements-for-the-approval-of-certain-energetic-materialsCanonical document at the regulator. Always cite this URL — not the Vantage detail page — in compliance evidence.