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Reference · Federal Acronym Glossary

Government lives in acronyms. Decision-making requires clarity.

This glossary deciphers federal acronyms used by the U.S. government in its funding language. It is critical to understand the funding terms.

Download the glossary (PDF) 5 pages · linked index · August 2026 edition

Programs & Funding

SBIRSmall Business Innovation Research

Federal program that funds R&D at small businesses with commercialization potential. Awards are not procurement contracts and shouldn't be described as such.

STTRSmall Business Technology Transfer

SBIR's sister program; requires a formal partnership with a research institution such as a university or federal lab.

Phase IFeasibility stage

A small, short SBIR/STTR award to establish technical merit and feasibility.

Phase IIDevelopment stage

A larger follow-on award that advances Phase I results toward a working prototype.

Phase IIICommercialization stage

Work that derives from, extends, or completes an SBIR/STTR effort, funded from any source other than SBIR/STTR dollars — agency program funds, another agency, or a prime contractor buying it into a larger program. No dollar ceiling and no time limit. The part most firms miss: a Phase III can be awarded sole-source, without further competition, and agencies are directed to make that award to the firm that developed the technology to the greatest extent practicable. SBIR data rights carry forward, which is what makes the position defensible. No follow-on is ever guaranteed — but the authority to award one without recompeting is real, and it is the commercial point of the whole program.

BAABroad Agency Announcement

A solicitation for basic and applied research in which the agency states a research interest rather than a specific requirement, and proposals are judged on scientific merit by peer review instead of on price against a spec. Two practical differences from a NOFO: a BAA usually results in a procurement contract rather than a grant, and it typically stays open for a year or more with rolling or multiple submission dates instead of a single hard deadline. Many agencies screen a short white paper first and invite full proposals from there. The DoD SBIR/STTR solicitation is itself issued as a BAA.

FOAFunding Opportunity Announcement

A published federal funding opportunity, typically for grants or cooperative agreements. Largely superseded by NOFO, though many agencies still use FOA in announcement numbers — DE-FOA-0003634, for example, is a NOFO.

NOFONotice of Funding Opportunity

The current federal term for a published grant or cooperative-agreement opportunity, replacing FOA. It sets the topic areas, eligibility, cost share, and deadlines. Read it in full before writing anything — the responsiveness rules that disqualify an application live in the NOFO, not in the topic description.

Topic Areaalso “tier”

The subdivision of a NOFO. A single announcement is split into topic areas, each with its own block of funding, its own per-award ceiling, its own expected number of awards, and sometimes its own cost share. Eligibility is judged topic by topic — clearing the bar for one says nothing about the one beside it, and applying under the wrong one is a responsiveness failure, not a scoring loss.

Cost ShareCost Sharing

The non-federal portion of total project cost the applicant must contribute — commonly 20% on DOE R&D NOFOs, and calculated against total project cost, not the federal award. SBIR and STTR generally require none. Cash or allowable in-kind, never from another federal source. Most announcements require a signed commitment letter at submission; an application without one can be rejected before review.

TRLTechnology Readiness Level

A nine-point scale measuring how far a technology has progressed from an observed basic principle to a system operating under full mission conditions. Announcements state an entry and an exit TRL, and that band is a control gate, not a scoring factor — a technology outside it is non-responsive and is not reviewed at all. The point most applicants miss: TRL is indexed to the environment you intend to operate in, not to the technology in the abstract, so the same product can read at two very different numbers depending on the target. TRL 5 requires validation in a relevant environment, and the solicitation defines relevant — you don't. Entering too high carries its own risk: a technology already at the exit TRL invites the question of why federal research money is needed at all. TRL 1 through 7, defined →

Prime RecipientPrime

The organization that signs the award and carries legal and financial responsibility for it. Reviewers weigh the prime's corporate experience managing projects of similar nature and complexity — the organization's record, not an individual's résumé — so a company that has never run a project at the scale it is requesting can be screened out on management capability alone.

SubrecipientSubaward

The partner performing part of the scope under the prime's award, funded through a subaward rather than directly by the agency. For a small company whose technology fits a topic but whose project history won't carry the prime role, a subrecipient seat under a university, research institute, or larger firm is often the realistic path to the same work.

eXCHANGENETL / DOE submission portal

The DOE submission portal for NOFOs, separate from Grants.gov and from PAMS. Registration is its own step and is not covered by SAM.gov, so an applicant with an active SAM registration can still be locked out on deadline day. DOE advises submitting at least 48 hours early and will not extend for portal congestion.

RFIRequest for Information

A notice asking industry for input, usually before a NOFO exists. No award follows and responding is voluntary — but an RFI tells you what an office is considering funding months ahead of the announcement, and a substantive response puts your capability in front of the program staff who later write the topic.

CPConcept Paper

A short pre-application some agencies (notably DOE) require ahead of a full application. It is screened and returns an encourage or discourage response. Discouraged applicants may usually still apply — but a missed concept paper deadline disqualifies you from the cycle entirely.

LOILetter of Intent

A short pre-proposal notice some agencies (notably DOE) require, with a deadline weeks ahead of the full application. Where it is mandatory, missing it disqualifies you from that cycle entirely — no LOI, no application, regardless of how good the proposal would have been.

TPLTeaming Partner List

An optional list an agency publishes alongside a NOFO so organizations can post their interest and find project partners. Completing it is voluntary and carries no weight in review — but it is often the fastest way for a small business to reach the universities, labs, and primes competing for the same announcement.

Agencies & Departments

DoDDepartment of Defense

The federal military department and the largest SBIR/STTR funder.

DoWDepartment of War

A secondary title the DoD has used since a September 2025 executive order (its site is now war.gov). “Department of Defense” remains the legal name pending congressional action — the two refer to the same department.

DOEDepartment of Energy

Cabinet department funding energy, science, and national-security R&D.

HHSDepartment of Health and Human Services

The federal health department; parent of NIH.

NIHNational Institutes of Health

The medical-research agency within HHS and a major SBIR funder.

NASANational Aeronautics and Space Administration

The civil space agency; runs its own SBIR/STTR program.

NSFNational Science Foundation

Funds basic research and education; runs a fast-clock SBIR program.

DHSDepartment of Homeland Security

Cabinet department for domestic security and resilience.

DOTDepartment of Transportation

Cabinet department for transportation systems and safety.

DOCDepartment of Commerce

Cabinet department for trade, economic data, and standards; parent of NIST.

USDAU.S. Department of Agriculture

Cabinet department for agriculture, food, and rural development.

EPAEnvironmental Protection Agency

Federal agency for environmental protection and regulation.

USAFU.S. Air Force

A military service branch within the DoD.

USNU.S. Navy

A military service branch within the DoD.

SBASmall Business Administration

Sets SBIR/STTR policy governmentwide and maintains the Company Registry.

USPTOU.S. Patent and Trademark Office

Where patents and trademarks are filed and examined.

NISTNational Institute of Standards and Technology

Standards agency within Commerce; author of the SP 800-series security requirements.

Registration, IDs & Portals

SAMSystem for Award Management (SAM.gov)

The master federal registry; your entity must be active here to receive any award.

UEIUnique Entity Identifier

The 12-character ID issued in SAM.gov; replaced the older DUNS number.

EINEmployer Identification Number

The IRS-issued federal tax ID for your company.

SBCSmall Business Concern

The legal term for a qualifying small business; your SBA Company Registry entry yields an “SBC Control ID.”

DSIPDefense SBIR/STTR Innovation Portal

The DoD's proposal submission portal.

PAMSPortfolio Analysis and Management System

The DOE Office of Science submission portal.

Grants.govFederal grants portal

The governmentwide portal for finding and applying to federal grant opportunities.

Login.govFederal sign-in service

The shared federal log-in used to reach many agency portals.

SPRSSupplier Performance Risk System

The DoD system where you post your NIST SP 800-171 self-assessment score.

Compliance & Cybersecurity

CMMCCybersecurity Maturity Model Certification

The DoD framework verifying safeguards for FCI and CUI. “Certification” is specific — Level 1 is a self-assessment, not a third-party certification. Under review as of July 2026: third-party assessment is suspended and only self-assessments may currently be designated.

FCIFederal Contract Information

Non-public information provided or generated under a federal contract; its presence triggers CMMC Level 1.

CUIControlled Unclassified Information

Sensitive unclassified information requiring safeguarding; triggers CMMC Level 2 or above.

FARFederal Acquisition Regulation

The core rulebook for federal procurement. SBIR awards and OTAs are not FAR contracts and shouldn't be described in FAR terms.

DFARSDefense Federal Acquisition Regulation Supplement

DoD's additions to the FAR; clause 252.204-7012 drives CUI safeguarding.

OTAOther Transaction Authority

An award instrument that is not a contract, grant, or cooperative agreement, and to which the FAR does not apply. DoD uses OTs for research, for prototypes, and — after a successful prototype — for follow-on production without recompeting. The appeal is speed and negotiable terms, including intellectual property. The caution is that the familiar FAR protections and standard data-rights clauses are absent, so the agreement text itself governs. Under the FY2026 NDAA and current Department direction, OTs are a default award approach rather than an exception.

CSOCommercial Solutions Opening

A competitive open call that lets DoD buy commercial solutions without a traditional RFP, usually with a short solution brief before any full proposal. Two 2026 changes matter: Section 1823 of the FY2026 NDAA removed the requirement that the item be “innovative,” so a CSO can now be used for any commercial product, commercial service, or nondevelopmental item — and an award can now carry straight into follow-on production, including sole source. Paired with the Department's commercial-first direction, a CSO is one of the most likely doors into DoD for a company with something already built. Note the difference from everything above: this is procurement. The government is buying something, not funding your project.

NIST SP 800-171CUI control set

The NIST Special Publication defining the 110 controls that protect CUI — the basis for CMMC Level 2.

NIST SP 800-172Enhanced control set

The NIST Special Publication adding 24 enhanced controls for advanced threats — the basis for CMMC Level 3.

SPSpecial Publication (NIST)

NIST's document series (e.g., SP 800-171) that defines federal security requirements.

SSPSystem Security Plan

The document describing how your organization meets each required security control.

POA&MPlan of Action and Milestones

The remediation plan listing unmet controls and the schedule to close them.

IRPIncident Response Plan

Your documented procedure to detect, respond to, and recover from a security incident.

APTAdvanced Persistent Threat

A sophisticated, well-resourced adversary that maintains long-term access; defending against APTs is the focus of the highest CMMC level.

C3PAOCMMC Third-Party Assessment Organization

An accredited firm authorized to perform CMMC Level 2 certification assessments. Those assessments are available but cannot be imposed as a condition of award during the 2026 program suspension.

DIBCACDefense Industrial Base Cybersecurity Assessment Center

The government body that conducts the highest-level (Level 3) assessments. It also performs the government-led assessments that continue during the 2026 suspension of third-party certification.

CMMC Reform Task ForceDoD CIO-led program review

The body created July 13, 2026 to conduct a top-to-bottom review of CMMC, reporting to the DoD CIO in mid-September 2026. Its recommendations will determine whether, and in what form, third-party assessment returns.

Bidding & Assistance

DIBBSDLA Internet Bid Board System

The Defense Logistics Agency's online board where DoD supply solicitations and requests for quote are posted and bid. A primary entry point for small businesses selling parts, components, and materiel to the department.

APEX AcceleratorsGovernment-contracting assistance offices

Regional offices, most hosted at universities, that give small businesses free hands-on help pursuing federal, state, and local contracts. Run by the DoD Office of Small Business Programs in coordination with the SBA network. APEX Accelerators replaced the Procurement Technical Assistance Center (PTAC) program in 2023 — the PTAC name is no longer in use.

Practitioners & Method

PIPrincipal Investigator

The person leading an award's technical work; SBIR rules limit where the PI can be primarily employed.

Agentic AIGoal-directed AI systems

An AI system that plans and executes a multi-step task against a goal — calling tools, reading and writing files, checking its own output — rather than answering one prompt at a time. It matters to federal work in two directions. As a subject, an agency wants to know which decisions the system makes without a human in the loop, and how those decisions are validated and governed. As a method, it is how a small team assembles a full application package in weeks — and also how an unsupervised one produces a compliant-looking document with fabricated citations. Reviewers score whether the work is right, not which tools produced it.

If a term is missing, let me know and I'll correct the omission.

Email Scott