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DTMO Passport, including Per Diem rates, will be inaccessible on March 26, 2026 from 1900 - 2200 ET for scheduled maintenance.
The DoD Overseas Station and Housing Allowance Process Guide provides OHA and COLA survey schedules, details on unique expenses, and an overview of the responsibilities of the Country Allowance Coordinator.
The utility/recurring maintenance allowance is reviewed and updated annually, based on data collected through a survey provided to Service members receiving OHA and paying utilities separately from rent.
The move-in housing allowance (MIHA)/Miscellaneous allowance is based on triennial surveys, in which Service members report expenses incurred upon moving in to their quarters.
Rental allowances are reviewed and adjusted every six months and are determined by analyzing rents in the pay system, based on information provided by Service members’ DD Form 2367 [PDF, 2 pages]. Rent data is provided by finance offices through the Defense Manpower Data Center.