Modification and mass modification guidance

Your Multiple Award Schedule contract may require two types of modifications over its lifetime in order to stay current and compliant.

We routinely generate mass modifications, often associated with a solicitation refresh.
You may also modify your own contract through eOffer/eMod.

Mass modifications

We issue mass modifications directly to MAS contractors via the mass modification system. You must sign a mass modification within 90 days of receipt. Each mass modification will outline significant changes impacting the solicitation and your subsequent contract.

If you do not sign a mass modification before the release of the next mass modification, the next mass modification will include those unsigned changes. For example, if you have not signed Refresh 2 by the time Refresh 3 is released, when you sign Refresh 3 it will include changes from both Refresh 2 and 3.

Initiating a modification

Your company’s contracting administrator or POC must submit your modification requests electronically using eOffer/eMod whenever you need to update your MAS contract. Changes that require a modification include:

Products
Services
Prices
Terms and conditions
Administrative information such as authorized negotiators, addresses, phone numbers, fax numbers, and key personnel

For information specific to your MAS contract, please visit the Vendor Support Center’s page about modification options. Review MAS modification guidance [PDF - 1 MB] for information you need to successfully prepare and submit modification requests to your contracting officer or contracting specialist. Check your GSA schedule offerings page by special item number for specific instructions on modifying your contract.

You must keep all authorized negotiators and delegated agents up-to-date in the system. For example, if you delegated pre-award responsibilities to a consultant or third-party agent but do not intend for these agents to represent your firm following contract award, you must specifically request that these agents be removed as authorized negotiators from your contract. Find additional helpful information about processing modifications through the eOffer/eMod help center.

Modification price proposal templates

COTS letters of supply

You must submit a letter of supply if any of the following are true:

Your manufacturer does not participate in the Verified Products Portal.
You deal or resell COTS products.
You need to add a new manufacturer to your existing contract.

Modification letter templates

Sample cover letters [PDF - 381 KB]. Fill in the information noted in blue text for each sample submitted. You must customize these samples according to your specific needs. Add or delete information depending on your modification type.

Sample cover letter for FAS catalog platform baseline modification request [DOCX - 17 KB]. Use this cover letter template when submitting your baseline modification if you are transitioning to the FAS catalog platform. This document should be uploaded to supporting documentation in eMod.

Other templates you may need

Change of name agreement template (FAR 42.1205)
- You may also need to submit a legal certification of a name change using this suggested template.
Novation agreement template (FAR 42.1204)

New FAS Catalog Platform

In fiscal year 2024, a majority of contractors with commercial-off-the-shelf products published to GSA Advantage will move to the FCP. In fiscal year 2025, we expect to expand the FCP to service catalogs.

Find out what you need to do to prepare . You can get a user guide, answers to frequently asked questions, and training videos at the FCP site.

Clauses to review

MAS solicitation clauses:

552.238-82 Modifications (Federal Supply Schedule) (Jan 2022) (Alternate I - MAR 2020) and Modifications (Federal Supply Schedule) (Jan 2022) (Alternate II - MAY 2019)

Clause 52.222-26 Equal Opportunity: This clause requires you to display the Equal Opportunity Clause poster in a conspicuous place available to employees and applicants for employment. Subcontractors must similarly display the EEO poster. See the U.S. Equal Employment Opportunity Commission website for versions of this poster. You must also file the EEO-1 Survey in accordance with the instructions at the U.S. Equal Employment Opportunity Commission Survey website.

Clause 52.204-9 (personal identity verification of contractor personnel): This clause requires your company to comply with agency personal identity verification procedures identified in the contract that implement Homeland Security Presidential Directive-12 (HSPD-12), Office of Management and Budget (OMB) guidance M-05-24 and Federal Information Processing Standards Publication (FIPS PUB) Number 201.