Get contracting support to buy common goods and services | GSA
Archived: 2026-04-23 17:35
Get contracting support to buy common goods and services | GSA
Skip to main content
Countdown to America's 250th Anniversary:
close
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.
Get contracting support to buy common goods and services
Federal employees interested in OCAS contracting support
You can complete our
Project Interest Form
; an OCAS team member will contact you to review your requirements.
What we do for you
Our Office of Centralized Acquisition Services helps federal agencies simplify and strengthen how they acquire common goods and services. By leveraging our centralized, enterprise-wide acquisition model, you can expand your contracting capacity, especially during periods of limited staffing, while streamlining procurement processes and accelerating delivery.
OCAS solutions promote compliance, cost savings, and reduce risk by tapping into established governmentwide contracts and proven best practices. Partnering with OCAS enables you to focus resources on your mission priorities while benefiting from shared efficiencies across government.
Our services include
Direct contracting support for common goods and services
Partnering with agencies to align your procurement with mission objectives while simplifying the process
Centralized acquisition support that drives efficiency, savings, and better outcomes across government
Pilot AI and automation solutions to address capacity constraints and accelerate procurement timelines
Validating repeatable models for expansion across additional agencies
For industry
Learn about OCAS pipeline reviews
Stay informed about upcoming events, including OCAS pipeline reviews, and register using our
Interact communities
. Industry professionals can email
industrygsaocas@gsa.gov
to connect with us directly.
Contact OCAS
We encourage you to read the
OCAS FAQs
to find answers to your questions. We also invite you to email us your questions or suggestions at
ocas@gsa.gov
. We look forward to hearing from you!
Are you a contractor trying to register to ASSIST? Visit our
contractor-specific resources
to view and download step-by-step guides.
Are you a federal employee seeking OCAS contracting support? Complete the
OCAS Project Interest Form
, which is designed to facilitate a swift review process for employees of federal agencies operating within the scope of their job duties.
Print Page
Email Page
Last updated: Apr 16, 2026
Top
1
Choose a location
Error, The Per Diem API is not responding. Please try again later.
No results could be found for the location you've entered.
Get my location
OR
State
City (optional)
OR
ZIP
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.
2
Choose a date
Select fiscal year
OR
Travel start date (mm/dd/yyyy)
Travel end date (mm/dd/yyyy)
Rates are available between 10/1/2023 and 09/30/2026.
The End Date of your trip can not occur before the Start Date.
Additional terms and conditions
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.
Skip to main content
Countdown to America's 250th Anniversary:
close
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.
Get contracting support to buy common goods and services
Federal employees interested in OCAS contracting support
You can complete our
Project Interest Form
; an OCAS team member will contact you to review your requirements.
What we do for you
Our Office of Centralized Acquisition Services helps federal agencies simplify and strengthen how they acquire common goods and services. By leveraging our centralized, enterprise-wide acquisition model, you can expand your contracting capacity, especially during periods of limited staffing, while streamlining procurement processes and accelerating delivery.
OCAS solutions promote compliance, cost savings, and reduce risk by tapping into established governmentwide contracts and proven best practices. Partnering with OCAS enables you to focus resources on your mission priorities while benefiting from shared efficiencies across government.
Our services include
Direct contracting support for common goods and services
Partnering with agencies to align your procurement with mission objectives while simplifying the process
Centralized acquisition support that drives efficiency, savings, and better outcomes across government
Pilot AI and automation solutions to address capacity constraints and accelerate procurement timelines
Validating repeatable models for expansion across additional agencies
For industry
Learn about OCAS pipeline reviews
Stay informed about upcoming events, including OCAS pipeline reviews, and register using our
Interact communities
. Industry professionals can email
industrygsaocas@gsa.gov
to connect with us directly.
Contact OCAS
We encourage you to read the
OCAS FAQs
to find answers to your questions. We also invite you to email us your questions or suggestions at
ocas@gsa.gov
. We look forward to hearing from you!
Are you a contractor trying to register to ASSIST? Visit our
contractor-specific resources
to view and download step-by-step guides.
Are you a federal employee seeking OCAS contracting support? Complete the
OCAS Project Interest Form
, which is designed to facilitate a swift review process for employees of federal agencies operating within the scope of their job duties.
Print Page
Email Page
Last updated: Apr 16, 2026
Top
1
Choose a location
Error, The Per Diem API is not responding. Please try again later.
No results could be found for the location you've entered.
Get my location
OR
State
City (optional)
OR
ZIP
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.
2
Choose a date
Select fiscal year
OR
Travel start date (mm/dd/yyyy)
Travel end date (mm/dd/yyyy)
Rates are available between 10/1/2023 and 09/30/2026.
The End Date of your trip can not occur before the Start Date.
Additional terms and conditions
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.