New proposed shipping rules that harmonize with international standards will require some study.
On Aug. 24, 2010, the Department of Transportation's Pipeline and Hazardous Materials Safety Administration (PHMSA) proposed to harmonize the Hazardous Materials Regulations (HMR) with international standards – 75 Fed. Reg. 52069. The proposed rule revises several proper shipping names, hazard classes, packing groups, special provisions, packaging authorizations, air transport quantity limitations and vessel stowage requirements. Importantly, the proposal would also amend several key components of the HMRs and to the shipping requirements for several hazardous materials.
PHMSA states that these revisions are necessary for the HMRs to be consistent with recent changes made to the International Maritime Dangerous Goods Code (IMDG), the International Civil Aviation Organization's Technical Instructions for the Safe Transport of Dangerous Goods by Air (ICAO TI), and the United Nations' Recommendations on the Transport of Dangerous Goods – Model Regulations.