GETTING ON THE GSA SCHEDULE
What Goes in a GSA Letter of Supply? Content Checklist and Tips
If your GSA Multiple Award Schedule (MAS) offer does require a Letter of Supply (LOS), it should show that the manufacturer or source authorizes you to offer its products, that supply is available, and that the products meet the program’s product requirements. Use GSA’s current format and wording if one is provided, because the requirement is now limited to certain offerings. See GSA Letter of Supply: When It Is Required first.
What should a Letter of Supply cover?
The current offer instructions and SIN-specific requirements control the required content, so confirm them before you send a request to a manufacturer. Historically, GSA letters have addressed these points.
- Identification: the manufacturer or supplier, and you as the offeror, with contact details
- Authorization: confirmation that you are an authorized dealer, reseller, or distributor allowed to offer the products under a GSA contract
- Supply commitment: a statement that the source will supply sufficient quantities to meet government demand during the contract period, subject to reasonable conditions
- Product coverage: the product lines or specific products the letter covers
- Product requirements: confirmation, where the instructions require it, that the products are commercial items and comply with the Trade Agreements Act
- Signature: the printed name, title, and signature of someone with authority to speak for the source
What formatting details matter?
- Official letterhead of the manufacturer or supplier
- A current date, since some reviewers question older letters
- A reference to your company and, where appropriate, the solicitation or contract
- A signature from an authorized representative, not just a sales contact
- A clear list of what is covered, or a statement that it covers all products the source sells to you
How do you get a manufacturer to provide one?
- Start early. Government contracting teams at manufacturers may be small or unfamiliar with the request.
- Send a short cover note that explains the request, plus GSA’s language if available.
- Ask for a named contact and a target date.
- If the first contact declines, escalate to a channel, government sales, or contracts manager.
- Keep a copy of every letter with the date received, because you will need them for modifications and audits.
What causes letters to be rejected or delayed?
- Language that conditions supply in ways that could interrupt government orders
- Missing or vague authorization
- Letters that do not cover the products in your offer
- Signatures from someone without authority
- Unclear or missing product compliance statements when the instructions require them
When can a letter be avoided?
Only where the current rules say so, such as for offerings outside the limited IT and Printing and Photographic Equipment cases, or where the manufacturer is covered by the Verified Products Portal. Do not skip the letter based on an old article. Confirm with the current instructions or your contracting officer.
Letter of Supply Content FAQs
Questions about drafting, brands, distributors, and conflicting language.
Preparing an acceptable letter
-
Can I write the letter myself and ask the manufacturer to sign?
You can draft it as a courtesy, but the manufacturer must review and stand behind it. Never submit a letter the source has not approved.
-
Do I need one letter per brand?
Generally yes, one per source whose products you offer, unless one source covers multiple brands. Confirm the specifics in the instructions.
-
Does a distributor’s letter work instead of the manufacturer’s?
It depends on the supply chain and the instructions. If the letter comes from a distributor, GSA may want to see how it ties back to the manufacturer.
-
What should I do if a manufacturer’s LOS content conflicts with GSA’s instructions?
Ask the manufacturer to revise it, and if there is a dispute, ask your contracting officer before you submit.
Complete your product-offer documentation
Review applicability and get support for your MAS proposal.
Need help organizing your product offer?
Talk with TurboGSA about your supporting documents, manufacturer letters, and next steps.
