Special Permits and Interpretations
- PHMSA Special Permit DOT-SP 14689 (Cargo Tank Baffles)
- PHMSA Special Permit 11209 (Non-DOT Specification Cargo Tanks for Agricultural Purposes)
- PHMSA Special Permit 13341 (One-Way Transp. of LP-Gas in Commerce: more than 5% Rule)
- PHMSA F5800 Instructions and Form (Haz Mat Registration)
- PHMSA Interpretation 99-0248 (Internal Self-Closing Stop Valve)
- PHMSA Interpretation 01-0154 (Delivery Hoses & Hose Assemblies)
- PHMSA Interpretation 01-0285 (Flex Connectors in Piping System)
- PHMSA Interpretation 02-0005 (Both Passive & Remote Shutoff Not Required)
- PHMSA Interpretation 05-0195 (Rubber Hose Flex Connectors)
- PHMSA Interpretation 06-0172 (Emergency Discharge Controls)
- PHMSA Interpretation 06-0235 (Non-Odorized or Not-Odorized Lettering Requirements)
