DOT piping must comply with standards from which entities?

The correct answer indicates that DOT piping must comply with standards from multiple authoritative entities, specifically PHMSA, NYSDPS, and AHJ.

PHMSA, or the Pipeline and Hazardous Materials Safety Administration, is a federal agency responsible for regulating the transportation of natural gas and hazardous materials, ensuring safety standards are met across the United States. Compliance with PHMSA regulations is essential because it sets the foundational legal framework to ensure safe practices.

NYSDPS refers to the New York State Department of Public Service, which oversees utility services and safety standards in New York. This agency may have specific regulations and standards that further enhance safety measures for gas piping within the state, which complements the federal guidelines provided by PHMSA.

AHJ stands for Authority Having Jurisdiction, which can include local municipalities or other regulatory bodies that ensure compliance with safety codes and standards at the local level. This entity often adapts broader regulations to meet specific regional needs and conditions, enhancing safety.

Thus, compliance with standards from all three of these entities is essential to cover all regulatory bases, ensure comprehensive safety measures, and maintain adherence to local, state, and federal laws regarding natural gas piping systems.