PHMSA-07-29364 (HM-231A), Comment period; Hazardous Materials; Combination Packages Containing Liquids Intended for Transport by Aircraft.

SUMMARY: PHMSA and the Federal Aviation Administration (FAA) are considering changes to requirements in the Hazardous Materials Regulations applicable to non-bulk packagings used to transport hazardous materials in air transportation. To enhance aviation safety, the two agencies are seeking to identify cost-effective solutions that can be implemented to reduce incident rates and potentially detrimental consequences without placing unnecessary burdens on the regulated community. We are soliciting comments on how to accomplish these goals, including measures to: (1) Enhance the effectiveness of performance testing for packagings used to transport hazardous materials on aircraft; (2) more clearly indicate the responsibilities of shippers that offer packages for air transport in the Hazardous Materials Regulations (HMR); and (3) authorize alternatives for enhancing package integrity. We are also considering ways to simplify current requirements. Commenters are also invited to present additional ideas for improving the safe transportation of hazardous materials by aircraft.