COMDTINST 16715.5A — Marine Safety Center Regulation Interpretation Responsibility

COMDTINST 16715.5A governs Marine Safety Center interpretations of regulations and technical requirements related to commercial vessel plan review.

Search COMDTINST 16715.5A

  • Publication number: COMDTINST 16715.5A
  • Title: MARINE SAFETY CENTER REGULATION INTERPRETATION RESPONSIBILITY
  • Date: 11/1/2021
  • Proponent: CG-ENG

View COMDTINST 16715.5A on armypubs.army.mil


The publication addresses the Marine Safety Center’s authorities, technical determinations, program policy boundaries, environmental considerations, and distribution. It requires technical interpretations to remain with the Marine Safety Center while program policy and regulatory waivers or exemptions remain with Commandant (CG-5P).

Applies to: All Coast Guard unit commanders, commanding officers, officers-in-charge, deputy/assistant commandants, and chiefs of headquarters staff elements shall comply with the provisions of this Instruction.

Topics covered

  • Commercial vessel plan review
  • Regulatory interpretations
  • Technical determinations
  • Vessel design and construction approvals
  • U.S. Tonnage Measurement program
  • Program policy boundaries
  • Regulatory waivers and exemptions

Questions and answers

Who must comply with COMDTINST 16715.5A?

All Coast Guard unit commanders, commanding officers, officers-in-charge, deputy/assistant commandants, and chiefs of headquarters staff elements shall comply with the provisions of this Instruction. (paragraph 2)

What does the Marine Safety Center review for commercial vessels?

Pursuant to 46 CFR § 1.01-10(e)(5), the Commanding Officer, Marine Safety Center, under the direction of the Assistant Commandant for Prevention Policy (CG-5P) and the Director of Commercial Regulations and Standards (CG-5PS), conducts reviews and approvals of plans, calculations, and other materials concerning the design, construction, alterations, and repair of commercial vessels to determine conformance with the marine inspection laws, regulations, and implementing directions, and administers the U.S. Tonnage Measurement program. (paragraph 8)

Who handles technical regulatory determinations under COMDTINST 16715.5A?

Determinations concerning regulatory implementation of a technical nature will continue to be performed by the MSC.

Who is the first point of contact for commercial vessel plan review interpretations?

In this regard, the MSC will continue to be the first point of contact for all interpretations of technical requirements involving commercial vessel design and plan review approval.

Who is responsible for regulatory waivers and exemptions?

Likewise, any waivers or exemptions from the regulations will remain the responsibility of Commandant (CG-5P).

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