Travel
Approving Officer Mechanics
AO grade requirement, AO checklist, AO pecuniary liability for improper approvals. The SNCO or officer in the approval seat carries personal exposure. Read every voucher carefully.
Leader Steps
- Verify your AO appointment letter is on file before approving any voucher
- Read every voucher fully before approval
- Run the AO checklist on each voucher
- Document any returned voucher with specific corrections
- Coordinate with DTA on any system error during approval
- Set TDY destination as the installation when applicable, and issue certificate of non-availability only when accommodations are unavailable
Pecuniary Liability
The AO carries personal financial liability for fraud or negligence in payments approved. Per MCO 4650.39AMCO 4650.39A and DoD financial liability policy. MCO 4650.39A Approving a voucher means certifying the voucher is correct.
What this means in practice.
- An AO who approves a voucher containing fraud carries exposure for recovery of the fraudulent amount.
- An AO who approves a voucher containing obvious errors that reasonable review would catch carries negligence exposure.
- An AO who approves vouchers without reading them creates audit findings and potential personal liability.
The AO appointment letter on file documents the formal designation. Without the letter, an individual signing as AO has no authority and the approval is void.
AO Appointment
Before signing any voucher.
- Verify the AO appointment letter on file.
- Confirm the appointment covers the section or unit holding the voucher.
- Confirm the date range is current (most appointments carry expiration).
- Coordinate with DTA if appointment is missing or expired.
An AO assignment that lapses creates a routing gap. Vouchers route to a vacant AO and stall.
The AO Checklist
Run on every voucher before approval.
- Authorization number on voucher matches an approved authorization in DTS.
- TDY destination set as the installation, not the surrounding city or town, when the destination is a military installation.MARADMIN 234/26
- Marine Corps official lodging selected when the TDY destination is a Marine Corps installation, or certificate of non-availability attached when accommodations were unavailable.MARADMIN 234/26
- Lodging reimbursement claim does not exceed the official lodging rate when on-base lodging was available, unused, and no non-availability certificate is on file.MARADMIN 234/26
- Trip dates align with orders.
- Trip purpose matches what was authorized.
- Lodging within ceiling, or justification attached.
- Receipts attached for all expenses over the threshold.
- Mileage calculation reasonable for the route.
- Per diem days correctly counted (departure and return at 75 percent default).
- Rental car authorized if claimed.
- Split disbursement on.
- No personal expenses on the voucher.
- All allowances within JTR limits.
- Routing chain correct downstream.
A checklist item flagged at the lodging line is the most expensive line on the voucher. The MARADMIN 234/26 rule went into effect 25 May 2026. Treat the lodging triad (installation destination, on-base selection or non-availability certificate, reimbursement at official rate) as the new audit floor.
A checklist that turns up a flagged item warrants either non-approval (return to Marine) or, for a minor correction, an AO note to the Marine and approval with conditions per DTS practice.
The 3-Day AO Settlement Window
The AO acts on a submitted voucher within 3 working days. DTS Practice
- Day 1. Voucher arrives in AO queue.
- Day 1 to 3. AO reads, runs the checklist, decides.
- Day 3. Decision posted (approved, returned, or held with note).
A voucher sitting in AO queue past 3 days creates a Marine cash-flow problem and a section debt. The AO who lets vouchers age is the AO who creates GTCC delinquencies in the section.
Returning a Voucher
When the AO returns a voucher.
- Document the specific correction needed.
- Communicate the correction clearly through the DTS comment field or direct message.
- Track the resubmission cycle.
- Approve on resubmission if the correction lands.
A returned voucher with no specific correction text reads as a punishment to the Marine. Be clear.
When the AO Is Also the Section Leader
A SNCO or officer who is both the section leader and the AO carries dual roles. The voucher audit (section leader) and the approval (AO) are the same person.
This is fine for routine vouchers. For complex or high-dollar vouchers, route to a different AO outside the Marine's chain to add an independent set of eyes. Document the alternate routing.
When the AO Cannot Approve
Some situations warrant non-approval.
- Voucher contains fraud indicators. Coordinate with legal and DTA.
- Voucher contains gross errors the Marine cannot or will not fix. Return with documentation.
- AO appointment is invalid or expired. Coordinate with DTA before any further approvals.
Common AO Failures
- AO approves vouchers without reading. Audit findings expose the practice.
- AO returns vouchers without specific corrections. Marine guesses at the fix.
- AO sits on vouchers past 3 days. GTCC delinquency cascades through the section.
- AO appointment expires without notice. Vouchers route to a vacant AO.
- AO approves a voucher with obvious fraud indicators. Personal exposure for recovery.
Where to Go Next
- Voucher audit for the section-level pre-AO check.
- DTS oversight for the system mechanics.
- Claim disputes for what happens when payment posts wrong.
Same topic, other roles
References
- MCO 4650.39A Defense Travel System (DTS)
- DoD FMR Volume 9 TDY Travel
- DoD JTR Chapters 2 and 5
- DoD AO Appointment policy
- MARADMIN 234/26 - Marine Corps Official Lodging Facilities in the Defense Travel System
Related Pages
- Admin
DTS Authorizations and Orders Creation - S-1 Procedural Page
MCO 4650.39A
- Marines
Creating DTS Authorizations
MCO 4650.39A
- Admin
DTS Appointments and DD Form 577 - S-1 Procedural Page
MCO 4650.39A
- Admin
DTS Check-In / Check-Out and Profile Management - S-1 Procedural Page
MCO 4650.39A
- Admin
DTS Debt Management and Collection - S-1 Procedural Page
MCO 4650.39A