Main Interior Building

The Office of Facilities and Administrative Services (OFAS) is responsible for operating and maintaining the Stewart Lee Udall Department of the Interior Building (MIB) and the South Interior Building (SIB) and providing an array of administrative services for employees. If you have a service request or question, please call the OFAS Service Desk at 202-208-2222. You may also email us at or visit us in the Udall Building 1300 east corridor.

Information About the OFAS Organization

Information for Employees

Frequently Used OFAS Services

Customer Communication Forum

Informative session on activities and projects occurring in the Udall and South Interior Buildings. Emails will be sent prior to each forum with the agenda and location. If you would like to view minutes from prior years, click on the OFAS Archives Page

Minutes from Prior Customer Communication Forums