CONUS stands for the Continental United States, referring specifically to the 48 contiguous states and the District of Columbia. This designation is often used in federal regulations to differentiate from OCONUS, which includes Alaska, Hawaii, and other U.S. territories.
OCONUS stands for 'Outside Contiguous United States' and refers to locations outside the contiguous 48 states and the District of Columbia. Federal per diem rates for lodging, meals, and incidental expenses for travel OCONUS are published under the Federal Travel Regulations and updated periodically.
