Commercial Vessel Compliance

6/10/2016: Vapor control system policy letter announcement

The Coast Guard posted ‘Clarification and Guidance for Implementation of Marine VCS 02-16’ on Homeport.

The policy letter provides guidance on the implementation and interpretation of the final rule for the design and operation of new and existing marine vapor control systems (VCS) designed and installed in accordance with 33 CFR Part 154, subpart P. Specifically, the policy letter interprets requirements for line size expansion, liquid seals and anti-flashback burner compliance.

You can view the policy letter by going to and by clicking through the following tabs:

Missions – Environmental – Hazardous Materials Standards – Marine Vapor Control Systems

This blog is not a replacement or substitute for the formal posting of regulations and updates or existing processes for receiving formal feedback of the same. Links provided on this blog will direct the reader to official source documents, such as the Federal Register, Homeport and the Code of Federal Regulations. These documents remain the official source for regulatory information published by the Coast Guard.

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