2022 Liquid Chemical Categorization Updates

Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Department of Homeland Security Coast Guard 46 CFR Parts 30 and 150 [Docket No. USCG-2022-0327] RIN 1625-AC73 AGENCY: Coast Guard, DHS. ACTION: Final rule. SUMMARY: The Coast Guard is issuing this final rule to align liquid chemical categorization tables in its tank vessels and bulk dangerous cargo regulations with the 2020 Edition of the International Code for the Construction and Equipment of Ships Carrying Dangerous Chemicals in Bulk. The updated tables provide a list of the liquid hazardous materials, liquefied gases, and compressed gases approved for international and domestic maritime transportation and indicate how each substance is categorized by its pollution potential, safe carriage requirements, chemical flammability, combustibility, and compatibility with other substances. This rule imposes no additional costs to chemical shippers or vessel owners. DATES: This final rule is effective December 21, 2023. ADDRESSES: To view documents mentioned in this preamble as being available in the docket, go to www.regulations.gov , type USCG-2022-0327 in the search box and click “Search.” Next, in the Document Type column, select “Supporting & Related Material.” FOR FURTHER INFORMATION CONTACT: For information about this document call or email Dr. Raghunath Halder, U.S. Coast Guard Hazardous Materials Division (CG-ENG-5); telephone 202-372-1422, email Raghunath.Halder@uscg.mil , or Dr. Sandip Chattopadhyay, CG-ENG-5; telephone 202-372-1424, email San…