Brand Name or Equal: How a Supplier Builds an Equal Offer and How It Gets Evaluated

A solicitation says "brand name or equal." A supplier sees a product it can get for less, or one it can get faster, and writes "equal" on the quote. Then the quote is rejected, or worse, accepted and later found nonconforming. Almost every time, the product was fine. The paper was not.

This guide is written from the supplier's side. It covers how an equal offer is built, how a contracting officer evaluates it, and where offers fall apart. Buyers can use it as a yardstick for the quotes they receive. If you write the requirement itself, see our companion guide on writing salient characteristics, because a weak requirement is the root of most bad equal offers.

What "brand name or equal" means

A brand name or equal description names a specific product (the brand name product) as a reference, and says that another product will be accepted if it matches the listed salient characteristics. The brand name sets the quality level. The salient characteristics set the test.

FAR 11.104 covers when agencies use these descriptions. In short, performance specifications are preferred, and a brand name or equal description is appropriate when the salient characteristics are firm requirements. The regulation also requires that the description state the brand and the key physical, functional or performance characteristics an equal item must meet. A solicitation that names a brand and lists nothing else is not a proper brand name or equal description, and that is worth raising before the quote is due, not after.

Two points set up everything that follows:

• The government decides what is salient. The supplier does not get to decide that a listed characteristic is unimportant.
• The standard is "meets the listed characteristics," not "is as good as" or "is the same quality." A product can be better in every way you care about and still fail if it misses one listed characteristic.

What FAR 52.211-6 requires of the offer

The Brand Name or Equal provision, FAR 52.211-6, is the rulebook for how an equal is offered and judged. Its paragraphs (a) through (d) can be read as a supplier checklist. You can read the provision on acquisition.gov.

Paragraph (a): the description sets the bar

If an item is labeled "brand name or equal," the description establishes the quality level the government needs. The solicitation then lists the key physical, functional or performance characteristics that an equal product must meet. Those listed items are the test. Your job is to find them, all of them, including any in attachments, drawings or the schedule.

Paragraph (b): what the offer must contain

To be considered, an offer of an equal product must do four things. The brand name manufacturer's own product is covered by this paragraph too, when offered as the item itself.

1. Meet the salient physical, functional or performance characteristics specified.
2. Identify the product by brand name, if any, and make or model number.
3. Include descriptive literature such as illustrations, drawings or a clear reference to information already furnished to the contracting officer.
4. Clearly describe any modifications the offeror plans to make to the product to make it conform, and clearly mark any attachments that show those modifications.

Each of those four is a place where offers fail, so we treat them one at a time below.

Paragraph (c): the evaluator works from your paper

The contracting officer evaluates an equal using the information in the offer and reasonably available information. The contracting officer is not required to go find information that the offer did not identify. This is the single most important sentence for suppliers. If the proof that your product meets a characteristic is on page 14 of a datasheet you did not attach, you did not offer it.

Paragraph (d): say it is an equal, or you are offering the brand name

Unless the offeror clearly states that it is offering an equal product, the offeror shall furnish the brand name product named in the solicitation. A quote that lists a different make and model without the word "equal" can be read as a promise to deliver the named brand, and that is a promise you may not be able to keep.

Build the comparison table first

The recommended format is a side-by-side table that the supplier builds before writing the quote. It forces you to prove each characteristic, and it gives the evaluator a document they can check in minutes. Use one row per salient characteristic, in the order the solicitation lists them.

The numbers above are illustrative. The format is the point. Some practical rules for building it:

• Copy the characteristic wording from the solicitation exactly. Do not paraphrase. The evaluator is matching your row to their requirement.
• Fill the brand name column from the brand name manufacturer's published documents, not from memory. If you cannot find a published value, say "not published" rather than guessing.
• Give a page number for every offered value, in a document you attach. A claim with no page reference is a claim the evaluator has to take on faith.
• If the offered product is better than the requirement, show it. If it is lower on any listed characteristic, stop. It is not an equal, and the answer is to quote the brand name or ask a question before the deadline.
• Mark any modification (paragraph (b)(4)) in the table and on the attached literature, so the evaluator can see exactly what changes and where.

An evaluator who can check each row against a document will usually accept a clean equal. An evaluator who has to build the comparison themselves usually will not, and paragraph (c) says they do not have to.

Evidence has to match the exact model offered

This is the mistake we see most. A manufacturer publishes a brochure or spec sheet for a model family. The family covers several part numbers, with different capacities, voltages, sizes or options. The supplier attaches the family sheet and offers one member. The sheet lists a range, or lists the specifications of the top model, and the evaluator cannot tell which numbers apply to the part number on the quote.

The fix is simple and not optional:

• Offer a specific make and model, and use the exact part number in the quote, the table and the datasheet reference.
• Attach the spec sheet for that part number, or mark up the family sheet to show which column or row applies.
• If a characteristic depends on an option or configuration, state the configuration being offered.
• Check that the datasheet revision is current. Manufacturers update specifications between model years, and an old sheet can show a value the current product no longer has.

A model family sheet proves that the family exists. It does not prove that the part number you quoted meets the requirement.

How the evaluation actually goes

Under FAR 52.211-6(c), the contracting officer works from the offer plus reasonably available information. In practice, a technical evaluator or requiring official often reviews the table against the requirement and reports back. The typical flow looks like this:

1. The evaluator reads the salient characteristics from the solicitation.
2. They look for the offered make and model, and confirm that the quote says it is an equal.
3. They check each characteristic against the offered literature.
4. Any characteristic they cannot confirm from the paper is treated as not shown.
5. The contracting officer makes the call on acceptability, and may ask questions if the process allows.

Whether the contracting officer may open discussions or ask clarifying questions depends on the procedure used and the solicitation's terms. Under simplified acquisition procedures there is more flexibility, but you should not count on a second chance. Build the offer so it passes without one.

Why equals get rejected

These are the common reasons, in rough order of how often we see them:

• No literature. The quote says "equal, meets all specifications" and attaches nothing.
• Family sheet instead of the exact model sheet. The evidence does not match the part number.
• A listed characteristic is missing from the offer. The evaluator cannot find the dimension, rating or certification.
• A characteristic is not met. The offered product is slightly under on a listed minimum or over on a listed maximum.
• The quote does not say it is an equal. Under paragraph (d) the offeror is then treated as offering the brand name.
• Model number is generic. "Series 400" or "or similar" is not a make and model.
• Unmarked modifications. The offer says the product will be modified but does not describe or mark the change.
• Certification claimed, not shown. "Meets the standard" is not the same as a third-party certificate for that model.
• Reseller authorization is missing. See the next section.

None of these require a bad product. They require a quote that was easy to say yes to.

Offering the brand name from a reseller

Quoting the named brand directly is the simplest path, but it is not always paperwork free. When a solicitation requires an authorized source, or a buyer asks for proof that you can deliver genuine product with a manufacturer warranty, you may need a letter from the manufacturer or an authorized distributor. We cover what the letter must say in the letter of authorization guide, and the wider question of who counts as an authorized source in authorized reseller for government. Our practice is to obtain the manufacturer's letter before we quote brand-name or authorized-source requirements, and we do not quote without it. Counterfeit and gray market risk is the reason buyers ask, and vetting a reseller explains what they look for.

An equal does not escape this question. If an equal is offered from a manufacturer that has its own authorization requirements, the same paperwork may apply. Read the solicitation for the words "authorized," "genuine" and "manufacturer's warranty."

Quote time versus after award: equal versus substitution

These two things look alike and are treated completely differently.

An equal at quote time is part of the offer. The government evaluates it, accepts it or rejects it, and if it accepts, the contract is for that product. The offered make and model is what you owe.

A substitution after award is a change to what the contract already buys. The supplier now wants to ship something other than the product in the order, usually because the item was discontinued, delayed or priced out. The supplier does not get to decide that the new item is equal. Only the contracting officer can agree to a change, and shipping an unapproved item is a nonconforming delivery. Our practice is to verify the exact item is available before shipping and ask before any substitution. For the mechanics, see substitutions and discontinued items on government orders.

The practical lesson runs backward from award. If the equal you offer at quote time is already at risk of going out of stock, say so in the quote or offer the item with a stable supply. The table you built at quote time becomes the baseline for any later change request.

When the government names only a brand

Sometimes there is no "or equal." The buyer wants one brand. FAR 13.106-1(b) covers soliciting a single source at or below the simplified acquisition threshold, and it recognizes brand-name items as one case where a contracting officer may solicit from one source. For commercial product purchases above the threshold under subpart 13.5, FAR 13.501(a) requires a written justification, approved at a level that depends on dollar value, and the brand-name justification is posted with the solicitation. Where only part of a purchase needs a brand, the justification covers only that part.

The FAR is mid-overhaul, and agencies are issuing class deviations, so section numbers and dollar thresholds can move. We link the sources rather than repeat thresholds here. Check FAR 13.106-1 and FAR 13.501 for the current text and your agency's deviation. If a solicitation is brand-name-only and you believe an equal would meet the need, the time to say so is in a question or comment before the due date, not in the quote.

How Lunula Supply handles it

We are a reseller and supplier. We source commercial products from manufacturers and distributors, quote them, and drop-ship to the agency. On brand-name or equal requirements:

• We re-read the solicitation for amendments before quoting, because salient characteristics change in amendments.
• We get the manufacturer's letter of authorization before quoting brand-name or authorized-source requirements, and we do not quote without it.
• We build the characteristic-by-characteristic comparison and attach the exact model's documents.
• We send country of origin, authorization letters and representations with the quote.
• We confirm the order line by line in writing and verify the exact item is available before shipping.
• We ask before any substitution, and one contact stays with you through warranty.

If you are buying brand-name or equal items and want a supplier that documents the offer this way, contact us or see what we supply.

Frequently asked questions

Do I have to say the product is an "equal" in the quote?

Yes. Under FAR 52.211-6(d), unless the offeror clearly states that it is offering an equal product, it must furnish the brand name product named in the solicitation. State it plainly and name the make and model.

Does the contracting officer have to look for information I left out?

No. Under FAR 52.211-6(c), the contracting officer evaluates the offer using the information in it and reasonably available information, and is not required to find information the offer did not identify. Attach the literature and cite the page for each characteristic.

Can I offer a product that exceeds the specification?

Usually yes, if it meets every listed salient characteristic. Show the offered values next to the required ones in a comparison table. A product that is better overall but falls short on one listed characteristic is not an equal.

Can I ship an equal after award if my quoted item is discontinued?

Not on your own decision. After award, any change to what the contract buys needs the contracting officer's agreement. Tell the buyer as soon as you know, show the proposed item against the original specification, and wait for the decision before shipping.

General information, not legal advice. References were checked against acquisition.gov (FAC 2026-01) on the publish date. Your solicitation's terms control.