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.
Software Maintenance Services - Special Item Number 54151 includes person-to-person communications regardless of the medium used to communicate: telephone support, online technical support, customized support, and/or technical expertise which are charged commercially.
Eligible agencies: Federal, state, local, and tribal
MAS Solicitation: IT Software SIN 54151
NAICS: IT Professional Services
PSC: Products
Vendor list (eLibrary)
Eligible agencies can order on Multiple Award Schedule by issuing an RFI or RFQ to vendors through eBuy and GSA Advantage.
State, local, territorial, and tribal governments may be able to purchase through Cooperative Purchasing and Disaster Purchasing programs.
You can combine SINs to meet your requirements, and may have the option to set-aside the requirement for one or more socio-economic categories. Blanket Purchase Agreements are a great option for recurring needs and can help your agency meet strategic sourcing, compliance requirements, and socio-economic goals.
Current contract holders can submit a modification to add a SIN in the eOffer/eMod portal.
If you’re new to MAS, follow the MAS Roadmap guidance for preparing and sending an offer. You may be eligible to use FASt Lane, which can get you selling on schedules even faster.
Need help? Contact the Vendor Support Center.
Hours for live chat and calls:
Sun 8 p.m. to Fri 8:30 p.m. Central time
We are available Sunday 9 p.m.-Friday 9:30 p.m. Eastern time. Average wait times are under a minute.
Live chat currently closed: Normal hours are Sunday 9 p.m.-Friday 9:30 p.m. Eastern time.
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 10/1/2023 and 09/30/2026.
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