Federal assistance listings, by agency

The Chemistry of Federal Financial Assistance

Every federal assistance program has a listing number, and its first two digits name the agency: 14 is Housing and Urban Development, 20 is Transportation, 93 is Health and Human Services. Each agency is an element here. Pick one to see where its programs meet other agencies' programs. Below the table, pick a recipient type to see its mixture: the programs it holds and the compliance requirements they bring.

Hover or tap an element above to light its bonds.

01
The table

The agencies

Programs from different agencies bond in three ways: they appear in the same recipient's single audit, the same statute authorizes them, or the Compliance Supplement audits them as one cluster. Choose a bond, then an agency.

Bond

02
Mixtures

The mixture

Every state, local government, tribe, college and nonprofit that spends $750,000 or more in federal awards in a year files a single audit listing each program it spent from. That list is its mixture. Pick a recipient type.

Recipient type

The core of the mix

    Components

    The 18 programs in the most audits of this recipient type.

    03
    Mixtures

    How the mix is woven

    Each thread is an agency whose programs are in at least 2% of this recipient type’s audits, thicker the larger the share. Where two agencies’ programs land in the same audits, a crossing thread bonds them. Pick an agency to lift its thread.

    For counties. Change the recipient type under The mixture.

    StrongModerateWeak
    Thread colour as in the table.

    04
    Compliance requirements

    What the mix brings

    The 2025 Compliance Supplement marks which of 12 types of compliance requirements are subject to audit for each program it covers. A requirement is on for a mixture when at least one of its components carries it.

    For counties. Change the recipient type under The mixture.

    Method

    How it's measured

    The table

    1. Same recipientsPrograms in the same single auditTwo agencies bond when their programs land in the same recipient's single audit for the same year. In the mix: Agriculture programs are in 68% of the audits that have Interior programs. Affinity: Education and Nuclear Regulatory Commission programs land in the same audit 2.7 times as often as a random mix would put them there. Affinity is counted where two agencies share at least 100 audits.
    2. Same statutePrograms authorized by the same provisionTwo listings bond when the same section of the U.S. Code authorizes both, counting sections cited by 2 to 25 listings. Laws that fund dozens of programs at once, such as the CARES Act and the appropriations acts, aren't counted.
    3. Same clusterPrograms audited as one clusterThe Compliance Supplement groups some programs into clusters that are audited as one. Most clusters stay inside one agency; two cross agencies.

    Sources

      Limits

        Mixtures

        1. Recipient typeFrom the audit, sorted by name
        2. The mixtureThe programs in one single auditA mixture is one recipient's single audit for one fiscal year: every program it lists. Programs the Compliance Supplement audits as a cluster count once, as the cluster. Research and development awards count as the R&D cluster when the audit reports them that way. The core of the mix starts from the most common program and keeps only the audits that also have each next one, stopping below a quarter of the audits.
        3. How the mix is wovenAgencies in the same audits of one typeThe threads are the agencies whose programs are in at least 2% of one recipient type's audits. In the mix is the share of one agency's audits of that type that also have the other agency's programs. Affinity compares that with a random mix of that type's audits, counted where two agencies share at least 25 of them. Inside one type the agencies already share recipients, so its scale is lower than the table's: strong 2×, moderate 1.5×, weak 1.25×.
        4. What the mix bringsFrom the Supplement's matrixPart 2 of the 2025 Compliance Supplement marks each of the 12 requirement types Y or N for every program and cluster it covers. A requirement is on for a mixture when at least one of its components carries a Y. Programs the Supplement doesn't cover add none.

        Sources

          Limits