COMDTINST 16722.4 — Enforcement Of The Chemical Testing Regulations

COMDTINST 16722.4 governs Coast Guard enforcement of Chemical Testing regulations under Title 46 Code of Federal Regulations Part 16.

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  • Publication number: COMDTINST 16722.4
  • Title: ENFORCEMENT OF THE CHEMICAL TESTING REGULATIONS
  • Date: 6/28/1995
  • Proponent: CG-INV

View COMDTINST 16722.4 on armypubs.army.mil


It addresses drug and alcohol testing in the marine industry, including inspections, specimen collection, medical review officer activities, and required records. It requires enforcement actions, inspection documentation, and compliance checks for inspected and uninspected vessels.

Applies to: The Coast Guard chemical testing regulations are applicable to approximately 132,000 commercial vessel crewmembers working on approximately 44,000 inspected and uninspected vessels.

Topics covered

  • Chemical Testing regulations
  • Drug and alcohol testing
  • Marine employer inspections
  • Specimen collection
  • Medical review officer activities
  • Uninspected vessel deficiencies

Questions and answers

What does COMDTINST 16722.4 require marine employers to do regarding chemical testing?

Enforcement of the regulations is necessary to ensure that testing is being done by marine employers when required and in the manner required. (paragraph 4)

What must DAPIs include in Chemical Testing inspections?

The scope of the inspections should include required record keeping and reporting (including MIS), specimen collection and medical review officer activities, employee assistance programs, proper designation of crewmembers to be tested, and proper conduct of required tests. (paragraph 5)

How soon must Chemical Testing inspections be entered into MSIS?

Ensure that all inspections for Chemical Testing Compliance are entered into the marine inspection activity report (MIAR) product set in the marine safety information system (MSIS) as per current Commandant policy within 5 working days after the exam takes place. (paragraph 5)

What happens when an inspected vessel has a Chemical Testing deficiency?

Chemical Testing- related deficiencies should be documented and corrected by using Coast Guard Form CG-835 in accordance with established directives. (paragraph 5)

When may a vessel's Certificate of Inspection be removed for Chemical Testing noncompliance?

Only in extreme cases (i.e., conscious refusal of a marine employer to comply after issuance of a CG-835) should a vassel's Certificate of Inspection be removed. (paragraph 5)

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