PHMSA issued a final rule under Docket Number HM-216B. The final rule incorporated several widely used and longstanding rail special permits into the regulations: DOT SP-7616, 9388, 12095, 12905, 14333, and 14622. The final rule also incorporated two AAR petitions for rulemaking: P-1497 concerning the use of electronic shipping papers, and P-1567 concerning the removal of the AAR-600 portable tank program.