MCO 1771.1C — Collection Of Deoxyribonucleic Acid (dna) Reference Specimens To Aid In...

MCO 1771.1C governs Marine Corps DNA specimen collection, processing, and verification to aid in the identification of remains.

Search MCO 1771.1C

  • Publication number: MCO 1771.1C
  • Title: COLLECTION OF DEOXYRIBONUCLEIC ACID (DNA) REFERENCE SPECIMENS TO AID IN...
  • Date: 20 Feb 2026
  • Proponent: 01000 Military Personnel
  • Status: Current

View MCO 1771.1C on armypubs.army.mil


It requires DNA samples from Marine Corps personnel, establishes repository procedures, and addresses specimen collection and processing. It also requires shipment within 10 days and provides for administrative or disciplinary action for failure to comply.

Applies to: To publish requirements, guidance, and standard operating instructions for commanders, medical personnel, and administrative personnel regarding the collection of DNA within the Marine Corps, in accordance with references (a) and (b) to aid in remains identification.

Topics covered

  • DNA specimen collection
  • Remains identification
  • DoD DNA Registry and Specimen Repository
  • Specimen processing
  • Religious accommodation requests
  • DNA sample verification

Questions and answers

Who must provide DNA samples under MCO 1771.1C?

All personnel must provide DNA samples in compliance with this Order to aid in the identification of remains and establish a registry to carry out those policies. (paragraph 3)

When must DNA collection dates be recorded?

The collection date of all specimens collected must be recorded in the Marine Corps Total Force System (MCTFS). (paragraph 1)

When must personnel provide a DNA sample during health assessments?

All personnel during their annual Preventive Health Assessment (PHA), if a DNA sample is not already on file. (paragraph 2)

How must DNA specimens be shipped?

The specimens must be mailed by the U.S. Postal Service or shipped by an express carrier. (paragraph 4)

How should specimens be stored if shipment is delayed?

If shipment cannot be sent immediately, the shipment must be stored in a cool, dry environment away from direct heat. (paragraph 4)

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