Fridges and AC units no longer hazmat headaches—DOT to the rescue!
Published Date: 8/4/2026
Rule
Summary
This final rule removes undue regulatory burdens by adopting the provisions of U.S Department of Transportation (DOT) special permit (SP) 21287 to streamline the transportation of refrigerating machines-- including common household appliances like refrigerators, window- mounted air-conditioning units, and dehumidifiers--that contain small quantities of certain low flammability refrigerant gases.
Analyzed Economic Effects
4 provisions identified: 3 benefits, 1 costs, 0 mixed.
Transport Exception for Small Refrigerating Machines
If you make, ship, or carry refrigerators, window air conditioners, or dehumidifiers that contain small amounts of certain low-flammability refrigerants, you can transport them by highway or rail without a special permit. The exception applies when the machine contains 20 kg (44 pounds) or less of the eligible refrigerant and is not offered or transported by air or vessel; it is effective August 19, 2026.
New Official Standards for Eligible Refrigerants
PHMSA incorporated by reference ANSI/ASHRAE Standard 34-2024 and the Globally Harmonized System (GHS) 9th Edition (2021) to determine which refrigerants qualify for the exception. Starting August 19, 2026, businesses must use these referenced standards to identify Category 1B or Group A2L refrigerants eligible under 49 CFR 173.307.
Special Permit Paperwork Reduced
The rule removes the need for some special permits and reduces paperwork. PHMSA estimates an annual decrease of 12 respondents, 12 responses, and 17 annual burden hours for OMB Control No. 2137-0051, with an estimated decrease in annual burden cost of $0.
Air and Vessel Shipments Still Restricted
The exception does not apply when refrigerating machines are offered or transported by air or vessel. PHMSA will continue to require case-by-case special permits for air and vessel transport, which may complicate shipments to remote areas (for example, certain areas in Alaska) where air is the only practical option.
Personalized for You
How does this regulation affect your finances?
Personalize government policy and PRIA will tell you what this federal register document means for your household, plus every other regulation we track. PRIA reads each provision against your financial profile to show you exactly what matters to your wallet.
Key Dates
Department and Agencies
Related Federal Register Documents
2026-13805, Pipeline Safety: Repair Criteria for Hazardous Liquid and Gas Transmission Pipelines
The government wants to update pipeline safety rules to make fixing gas and liquid pipelines smarter, safer, and cheaper. These changes affect pipeline operators who’ll use new tech and clearer guidelines to spot and repair problems faster. Comments are open until September 8, 2026, so get ready to weigh in before the rules get final—and yes, this could save money and prevent accidents!
2026-10782, Pipeline Safety: Class Location Change Requirements; Correction
PHMSA fixed a small but important detail in a new pipeline safety rule from January 2026. Pipeline operators can now confirm or restore safe pressure levels when neighborhoods change around their pipes, with a clear 24-month deadline starting either from the rule’s effective date or when they begin work. This helps keep gas pipelines safe without confusion about timing, so operators know exactly when to act and avoid costly delays.
2026-08144, Administrative Rulemaking, Guidance, and Enforcement Procedures
The Department of Transportation is bringing back and improving its rules for making new policies, giving guidance, and enforcing laws. This affects anyone involved in transportation regulations, making the process clearer and more consistent. These changes kick in on May 27, 2026, aiming to save time and avoid confusion without adding extra costs.
2026-08058, Pipeline Safety: Safety of Gas Transmission Pipelines: MAOP Reconfirmation, Expansion of Assessment Requirements, and Other Related Amendments; Correction
This update fixes a numbering mistake in the rules for checking the maximum safe pressure of gas pipelines. Pipeline operators must follow the corrected list to avoid confusion, but no new costs or deadlines are added. The fix takes effect on August 3, 2026, making safety rules clearer and easier to follow.
2026-06323, Pipeline Safety: Class Location Change Requirements; Response to Petition for Reconsideration
Pipeline companies and safety pros, listen up! PHMSA just said no to changes requested by the Interstate Natural Gas Association about pipeline safety rules for areas where people live or work. This means the current rules about how pipelines must be upgraded when neighborhoods grow stay in place, so companies should keep their safety upgrades on schedule without extra costs or delays.
2026-15808, Hazardous Materials: Reducing Undue Paperwork Burdens to Domestic Carriers
This final rule removes undue regulatory burdens by providing domestic carriers and facility operators the option to maintain electronic copies of emergency response information rather than requiring a hard copy printed on paper.
Previous / Next Documents
Previous: 2026-15816, Hazardous Materials: Adoption of Department of Transportation Special Permits 12412 and 11646 Into the Hazardous Materials Regulations
PHMSA is amending the Hazardous Materials Regulations to adopt the provisions of U.S. Department of Transportation (DOT) special permit (SP) 12412 and DOT SP 11646. These amendments will provide greater regulatory flexibility and eliminate the need for special permit renewal requests, reducing paperwork burdens and facilitating commerce while maintaining an equivalent level of safety.
Next: 2026-15818, Hazardous Materials: Adoption of Department of Transportation Special Permit 21379
This final rule removes undue regulatory burdens by adopting the provisions of U.S. Department of Transportation (DOT) special permit (SP) 21379 to streamline the transportation of refrigerating machines and components containing certain low flammability refrigerant gases.