MCO 5530.15 — U. S. Marine Corps Interior Guard Manual

MCO 5530.15 governs policy and implementation guidance for effective Marine Corps interior guard programs.

Search MCO 5530.15

  • Publication number: MCO 5530.15
  • Title: U. S. MARINE CORPS INTERIOR GUARD MANUAL
  • Date: 14 Oct 2008
  • Proponent: 05000 General Admin & Management
  • Status: New

View MCO 5530.15 on armypubs.army.mil

MCO 5530.15 covers guard duties, orders and countersigns, guard mounting, post and relief procedures, and guard duty aboard ship. It requires training, inspections, proper weapons procedures, and compliance with general and special orders.

Applies to: This Order is applicable to the Marine Corps Total Force.

Topics covered

  • Interior guard programs
  • Use of deadly force
  • Guard mounting procedures
  • General and special orders
  • Post and relief procedures
  • Guard duty aboard ship

Questions and answers

When may deadly force be used?

Deadly force is to be used only when all lesser means have failed or cannot reasonably be employed. Use of deadly force will be in accordance with reference (c). (paragraph 7)

What must happen before a sentry is posted?

No sentry will be posted that does not meet the requirements of the guard mount. (paragraph 3)

How many reliefs are required for a running guard?

A running guard consists of not less than five reliefs, each of which is posted for a 4-hour watch in numerical rotation. (paragraph 7)

When is challenging by sentries aboard ship dispensed with?

Challenging by sentries at gangways, or on board ship, is dispensed with at the discretion of the CO of the ship. (paragraph 1)

What must special guard sentries do with general orders?

Special guard sentries must memorize, understand, and comply with the General Orders for sentries (see Chapter 3). (paragraph 1-2)

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