What Fast-Track is
Fast-Track is a pathway — primarily at NIH and some DoD components — that allows a firm to submit a Phase I and a Phase II proposal together. Both are reviewed in a single cycle. If Phase I is awarded and the firm meets the Phase I technical milestones, Phase II transitions automatically without a separate application cycle. The effect is to compress what normally takes 12-18 months (Phase I award, execution, Phase II application, Phase II award) into closer to 9-12 months.
Fast Track Decision Flow
- Step 1 — Identify the match investor: Fast Track requires a non-federal match commitment from a third-party investor before Phase I concludes. Identify this partner at proposal submission.
- Step 2 — Structure the match properly: Match can be cash investment, customer payments, or in-kind contributions that meet the agency's threshold. Confirm the agency's definition.
- Step 3 — Submit Phase II concurrently: Fast Track allows Phase II submission while Phase I is still running — eliminating the gap between phases.
- Step 4 — Maintain Phase I delivery: Fast Track does not relax Phase I requirements. Deliver the Phase I milestones on time while building the Phase II submission in parallel.
Where Fast-Track is offered
| Agency | Fast-Track availability | Notes |
|---|---|---|
| NIH | Primary user of Fast-Track | NIH runs Fast-Track as a standard pathway across most institutes. Well-documented process. |
| DoD (specific components) | Available on select topics | Less common than NIH. Check topic designation. |
| NSF | Not offered under that name | NSF has a pitch-to-Phase-I-to-Phase-II structure that is sequenced differently. |
| DOE | Limited | Topic-specific. Not a standard pathway. |
How the mechanics work
A Fast-Track submission includes both the Phase I proposal and the Phase II proposal as a single combined package. Reviewers evaluate the Phase I technical merit and the Phase II commercialization and prototype-to-deployment plan together. A Fast-Track award funds Phase I immediately. If the Phase I milestones are met at the Phase I end-of-performance review, Phase II funding is released automatically.
The critical mechanism is the milestone-based transition. The Phase I must define measurable success criteria, and the firm must meet them. If milestones are not met, Phase II funding is not released — the Fast-Track becomes effectively a Phase I only.
When Fast-Track is the right call
High confidence in Phase I success
If you know the approach works — based on prior work, clear technical path, well-understood data — Fast-Track captures the time savings without the risk of a failed transition.
Clear Phase II scope
Fast-Track requires you to articulate Phase II at submission. If Phase II depends on what you learn in Phase I, Fast-Track is premature.
Agency customer identified
Fast-Track's commercialization section needs to be strong, which requires a customer conversation already underway.
Time pressure
If funding timing matters — burn rate, competitive pressure, program-of-record window — compressing 6-12 months out of the timeline is valuable.
When Fast-Track is the wrong call
Uncertain Phase I outcome
If Phase I is genuinely a feasibility study where the answer is unknown, locking in Phase II scope at submission is premature.
Evolving Phase II customer
If you do not yet know who the Phase II customer is, the commercialization section will be weak.
First-time SBIR firm
Fast-Track expects the firm to already have the execution maturity to run Phase I and have Phase II scope figured out. Less mature firms often score better on a conventional Phase I then Phase II.
Complex integration
If Phase II requires heavy integration with an agency system that you do not yet know well, scope will shift between submission and award.
Review and scoring
Fast-Track reviewers apply both Phase I and Phase II evaluation criteria. The technical volume is scored as Phase I — technical merit, approach, team. The Phase II volume is scored as Phase II — commercialization, prototype-to-deployment, customer pull. Both must score well independently. A Fast-Track that is technically strong but commercially weak will often be awarded as Phase I only, with the Phase II component declined.
Historically Fast-Track award rates have been similar to or slightly lower than conventional Phase I at the same agency. The compression is in timeline, not in probability.
Milestones — the transition trigger
Fast-Track Phase I milestones should be concrete, measurable, and tightly bound to the technical approach. Good milestones: "Model accuracy on held-out test set ≥ 85% as measured by F1 score." Bad milestones: "Demonstrate technical feasibility." Reviewers want to see milestones that can be verified at the end of Phase I, not subjective claims.
At the Phase I end-of-performance review (typically month 6), the agency evaluates whether milestones are met. If they are, Phase II funding is released. If they are not, the firm can appeal, request modification, or accept that Phase II will not fund.
Budget and planning implications
A Fast-Track submission requires a Phase I budget and a Phase II budget. Both are evaluated for reasonableness. The Phase II budget is often in the $1-2M range; the combined Phase I plus Phase II can be $1.2-2.3M as a single obligation (though the money flows in two tranches). Staffing plans should reflect the continuity — Phase II ramp typically starts within weeks of the Phase I success determination.
How it compares to DP2
Fast-Track and DP2 are both compression pathways but solve different problems. DP2 skips Phase I when Phase-I-equivalent work is already done. Fast-Track runs Phase I but eliminates the gap between Phase I and Phase II. For firms with prior equivalent work, DP2 is usually the better choice. For firms without prior equivalent work but with high confidence in the approach, Fast-Track offers timeline compression without the DP2 evidence burden.
Frequently asked questions
A pathway that allows simultaneous Phase I and Phase II submission with automatic Phase II transition on Phase I milestone completion.
Primarily NIH; selectively at DoD components and some DOE topics. Not offered under that name at NSF.
Clear Phase II scope at submission, measurable Phase I milestones, and a credible commercialization plan.
On meeting Phase I milestones, Phase II funding is released automatically without a separate application cycle.
Not easier in absolute terms. Award rates are similar to conventional Phase I. The benefit is timeline.
When Phase I is a genuine feasibility unknown, when Phase II scope depends on Phase I learning, or when customer relationships are early.