An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock
( )
or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
The Public Buildings Service has transitioned from our current occupancy Agreement tool (OATool/eOA) to a new OA application - the Occupancy Agreement and Space Inventory System (OASIS).
PBS OASIS Customer User Guide [PDF - 2 MB] (Updated June 10, 2024)
Access OASIS at oasiscustomers.gsa.gov. If you experience any problems accessing the system please contact the GSA PBS National Application Help Desk at 866-367-7878 or email at COPBSApp@gsa.gov. Users must have a valid Login.gov account to access OASIS. If you are having difficulties with your account, please visit the Login.gov Help Center for assistance or Login.gov Contact Us for contact information.
To request access to OASIS, complete the PBS OASIS Customer Access Request Form [PDF - 252 KB]
To address system issues, OASIS is operating on a “rapid release schedule” with new updates published every two weeks. These updates, along with other pertinent system information, are summarized in bi-weekly OASIS User Bulletins. Review archived bulletins below. To be added to the bulletin distribution, email PBSOASIS@gsa.gov.
The PBS OASIS team is releasing several videos related to the new system and related pricing policy changes.
Please see the offerings below.
Note: Videos marked as “NEW” have been updated to reflect the new customer approval workflow and portal effective June 10,2024. All other videos remain accurate, but were developed prior to the new workflow and portal)
The OASIS transition team has hosted multiple information sessions regarding changes in OA policy and process, as well as training sessions on using the new OASIS system.
You may review resources from past information sessions and trainings including:
PBS OASIS - new customer approval workflow
June 13, 2024
PBS OASIS update and information session
April 11, 2024
Policy and process changes for occupancy agreements
April 5, 2022
Additional Resources
OASIS provides a more efficient and effective way for customers to manage their OAs, but there are changes associated with the transition. Starting immediately, for occupancies effective in the second half of FY24, GSA will send the first OA right before lease or construction contract award, based upon actual bids. This timing change will greatly reduce the volume of OAs sent to customers. The award OA will document a customer’s financial obligation to GSA once a contract is awarded. All OAs will, therefore, represent a pending contract action waiting for customer approval and OA approval is needed in a timely manner to avoid delaying your project.
As part of the project planning process, GSA will continue to provide Client Project Agreements (CPAs) around 30 months prior to a customer’s occupancy effective date (for non-prospectus projects). For prospectus projects, CPAs will be provided around 12-18 months before OMB submission, at the end of strategic requirements development. The CPA is not a financial commitment. It records the high level parameters for your space and the project’s initial financial estimates. The financial obligation comes later upon approval the OA sent shortly before contract award. Learn more about the CPA here; the financial information is captured in Part 2, section h.
OASIS offers many benefits to customers, including:
If you have any questions or would like additional information, please contact PBSOasis@gsa.gov.
Looking for the OASIS (One Acquisition Solution for Integrated Services) professional services contract? Visit the OASIS and OASIS Small Business page.
Error, The Per Diem API is not responding. Please try again later.
No results could be found for the location you've entered.
Rates for Alaska, Hawaii, and U.S. territories and possessions are set by the Department of Defense.
Rates for foreign countries are set by the Department of State.
Rates are available between 10/1/2022 and 09/30/2025.
The End Date of your trip can not occur before the Start Date.
Traveler reimbursement is based on the location of the work activities and not the accommodations, unless lodging is not available at the work activity, then the agency may authorize the rate where lodging is obtained.
Unless otherwise specified, the per diem locality is defined as "all locations within, or entirely surrounded by, the corporate limits of the key city, including independent entities located within those boundaries."
Per diem localities with county definitions shall include"all locations within, or entirely surrounded by, the corporate limits of the key city as well as the boundaries of the listed counties, including independent entities located within the boundaries of the key city and the listed counties (unless otherwise listed separately)."
When a military installation or Government - related facility(whether or not specifically named) is located partially within more than one city or county boundary, the applicable per diem rate for the entire installation or facility is the higher of the rates which apply to the cities and / or counties, even though part(s) of such activities may be located outside the defined per diem locality.
U.S. General Services Administration