As part of its ongoing effort to harmonize Hazardous Materials Regulations; 49 CFR Parts 171–180 (HMR) with international standards, PHMSA published the HM-215M Notice of Proposed Rulemaking (NPRM) on August 25, 2014. The comment period for these proposed changes lasts until October 24, 2014, and you can read our expanded coverage of the NPRM announcement…