Under the New York City fire code, refrigerant storage containers must be approved by which organization?

• A. EPA
• B. OSHA
• C. NFPA
• D. US Department of Transportation

Answer: (D)

The main idea is that containers for refrigerants used in storage are treated as pressurized vessels, so their safety and design must come from an official approval authority that covers hazardous materials handling. The US Department of Transportation is the correct approval body because they certify and specify the standards for pressure receptacles and packaging used to contain refrigerants, ensuring the vessels can safely withstand pressure, resist leaks, and carry proper markings for inspection. This federal approval provides a clear, consistent basis for fire code inspectors to verify that stored refrigerants are in compliant, safe containers. While other agencies like the EPA, OSHA, and NFPA have important roles in environmental control, workplace safety, and standards development, they do not issue the container approvals themselves.