DEPARTMENT OF THE NAVY
O
FFICE OF THE CHIEF OF NAVAL OPERATIONS
2000 NAVY PENTAGON
WASHINGTON DC 20350-2000
OPNAVINST 7220.13A
N130
22 Jan 2019
OPNAV INSTRUCTION 7220.13A
From: Chief of Naval Operations
Subj: MILITARY PER DIEM RATES
Ref: (a) 37 U.S.C. §474
(b) Joint Federal Travel Regulations, 1 September 2018
Encl: (1) Units Designated for Essential Unit Messing
1. Purpose. To provide policy and procedures under which essential unit messing or reduced
per diem may be authorized. This instruction is a complete revision and should be reviewed in
its entirety. Significant changes include:
a. Procedures for requesting essential unit messing or reduced per diem.
b. Units designated for essential unit messing, as listed in enclosure (1).
2. Cancellation. OPNAVINST 7220.13.
3. Scope and Applicability. The provisions of this instruction are applicable to all Navy
members.
4. Per Diem, Travel and Transportation Allowance Committee Review. This instruction has
been reviewed by the Per Diem, Travel and Transportation Allowance Committee staff in line
with Department of Defense (DoD) Instruction 5154.31, volume 5, of 16 October 2015, as Per
Diem, Travel and Transportation Allowance Committee Case RR17005.
5. Background. References (a) and (b) authorize and prescribe certain circumstances under
which per diem may be reduced. Enclosure (1) of this instruction provides a list of units
designated for essential unit messing. The most common circumstances are listed in
subparagraphs 5a through 5e. For purposes of this instruction, only essential unit messing and
reduced per diem will be addressed.
a. Field Duty. Reference (b), paragraph 020315-D1, prohibits payment of per diem to
members on field duty, as defined in appendix A of reference (b).
b. Duty on a Government Vessel. Reference (b), paragraph 020315-F, prohibits a Service
member from receiving per diem for any period of temporary duty (TDY) aboard a Government
vessel when quarters are provided without charge and meals are provided with or without charge.
