DTMO · DoD OCONUS Per Diem

Tamuning, Guam OCONUS Per Diem Rates (DTMO)

Effective date: April 1, 2025 Last updated: October 1, 2025
Lodging (per night)
$179
Local meals
$99
Incidentals
$25
Maximum per diem
$303
Lodging + meals + incidentals

Historical rate trend

Tamuning rate history — Max per diem ($/day). Query any past effective date directly via the API.

Effective date Lodging M&IE Max per diem
Jul 1, 2026 $179 $124 $303
Mar 1, 2025 $179 $124 $303
Jan 1, 2025 $159 $124 $283
Oct 1, 2024 $179 $124 $303
Feb 1, 2023 $159 $124 $283
Jan 1, 2023 $159 $96 $255
Oct 1, 2022 $159 $124 $283
Sep 1, 2019 $159 $96 $255
Jan 1, 2019 $159 $87 $246
Oct 1, 2018 $159 $96 $255
Dec 1, 2014 $159 $87 $246
Page of · 11 rows

How this rate is used

This DTMO per diem rate is the Department of Defense ceiling for lodging, meals and incidental expenses for DoD travelers (military and civilian) on TDY in Tamuning, guam. It governs OCONUS travel voucher reimbursement and is used by defense and overseas programs for cost estimating. The proportional meal rate ($59) applies when some meals are provided in kind.

Get this data from the API

The exact request that returns this page's data. Change the date parameter to query any historical effective date, or pull it straight into your ERP, payroll, or expense system.

curl -H "X-API-Key: YOUR_KEY" \
  "https://api.allowancesapi.com/v1/dtmo/perdiem/oconus/US-GU?city=Tamuning"
Sample response
{
  "effective_date": "2025-04-01",
  "results": [
    {
      "iso_code": "US-GU",
      "local_incidental": 25,
      "local_meal_rate": 99,
      "location": "Tamuning",
      "lodging": 179,
      "maximum_perdiem": 303,
      "proportional_meal_rate": 59
    }
  ],
  "verification_url": "https://www.travel.dod.mil/Travel-Transportation-Rates/Per-Diem/"
}

Tamuning rate FAQ

What is the OCONUS per diem rate for Tamuning, Guam?

The current maximum DTMO OCONUS per diem for Tamuning, Guam is $303 per day — $179 for lodging, $99 for local meals and $25 for incidentals.

What is the proportional meal rate for Tamuning?

The proportional meal rate for Tamuning is $59 per day, used when some meals are furnished.

When did the Tamuning per diem rate last change?

The rate shown reflects the latest DTMO publication. The historical table above lists prior maximum per diem values back to Dec 1, 2014.

Source & methodology

Effective period
Effective Apr 1, 2025 (published Jul 2026)
Last updated
July 1, 2026

Allowances API is not affiliated with, endorsed by, or sponsored by any U.S. Government agency. All rate data is sourced from official public rate tables and re-published in a normalized format.