Comply with DOT/PHMSA hazmat rules and follow State-designated hazardous-materials routes (49 CFR 397.67); cities cannot impose routes as permit conditions, so honor any routing or delivery-hour commitments made during approvals (e.g., KPPC's Thornton Road–I-8 route and weekday 8 a.m.–5 p.m. deliveries in Casa Grande) by writing them into carrier contracts.
az-regulatory §Hazmat transport and local routing conditions
- When it applies
- Chemical producers, chemical 3PLs, isotainer fleets.
- Evidence you'd show
- Policy document, Training record
- How often
- Whenever something changes
- If it isn't met
- FMCSA/PHMSA enforcement; broken commitments made to the approving city.
az-regulatory v1 §Hazmat transport and local routing conditions — verify against the source
Verified against source on 2026-09-07 · Source version: 2026 calendar
Verify against the source — requirements change.
https://www.ecfr.gov/current/title-49/subtitle-B/chapter-III/subchapter-B/part-397