FAR Part 15 for Small Businesses: What You Need to Know Before Writing Your First Proposal
FAR Part 15 governs competitive negotiated acquisitions — the RFP-and-proposal process that accounts for most significant federal contract awards. This plain-English guide covers source selection, competitive range, and what happens to your proposal after you submit it.
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FAR Part 15 is the rulebook for competitive negotiated procurements — the RFP-and-proposal process that governs most significant federal contract awards above $250K. If you are writing a proposal response, you are operating inside Part 15 whether you know it or not. The contractors who understand how source selection actually works write fundamentally different proposals than the ones who do not.
Best Value vs. LPTA: these are not the same competition
The evaluation approach in Section M dictates your entire proposal strategy. Read it before you write anything. If the solicitation is Best Value (Tradeoff), evaluators will weigh your technical merit, past performance, and price against each other — a stronger technical approach can overcome a higher price. If it is LPTA, there is exactly one thing that matters: meet the minimum technical requirements and submit the lowest price. Writing a differentiated technical volume for an LPTA solicitation is wasted effort.
- Best Value: evaluators can award to a higher-priced offeror if the technical superiority justifies the premium — this is where your discriminators matter
- LPTA: lowest compliant price wins, period — no credit for exceeding minimum requirements
- Hybrid solicitations exist: LPTA on price, best value on past performance — read Section M carefully
- The evaluation approach is stated explicitly in Section M, not implied — find the exact language before scoping your proposal
Competitive range: what it means to be cut
After initial review, the Source Selection Authority can establish a competitive range — keeping only the proposals with a reasonable chance of winning. Proposals outside that range are eliminated before discussions even begin. If you are cut, the agency must notify you and provide a brief explanation on request. That explanation is useful. Request it, read it, and use it to diagnose what disqualified you — whether it was compliance, technical approach, or price.
Evaluation Notices and your Final Proposal Revision
When an agency opens discussions (FAR 15.306), they send Evaluation Notices — written questions, deficiency flags, and clarification requests — to each offeror in the competitive range. You must respond within the stated timeframe. Your Final Proposal Revision (FPR) is the last document the evaluators see before they make a decision. Most FPR failures happen because the team responded to the EN text without addressing the underlying weakness the evaluator was pointing at.
Get a debrief after every procurement — win or lose
You are entitled to a post-award debrief on every negotiated procurement above the simplified acquisition threshold. Request one within 3 days of award notification (FAR 15.505–15.506). Debriefs give you your evaluation scores, your significant weaknesses, and — if the CO is willing — insight into why the winner won. Small businesses that consistently skip debriefs are flying blind on every subsequent pursuit in that agency. It takes 30 minutes and it is free.
Frequently Asked Questions
What is a Source Selection Authority in federal contracting?
The Source Selection Authority (SSA) is the individual with authority to make the final award decision on a competitive procurement. On large acquisitions, the SSA is a senior agency official separate from the evaluation team. On smaller procurements, the Contracting Officer may serve as SSA. The SSA is bound by the evaluation criteria stated in Section M — they cannot award based on criteria not in the solicitation.
What happens if my proposal has a material omission?
A material omission — missing a required section, failing to sign a certification, or not providing required documentation — can result in your proposal being deemed non-responsive and rejected without evaluation. This is why a compliance matrix is critical. Non-responsive proposals are not eligible for competitive range consideration.
Put this into practice
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