Marin County Transportation District: Single Audit Reports and Findings
Marin County Transportation District filed 10 single audits between 2016 and 2025; the most recently observed auditor is MAZE AND ASSOCIATES (2025), and the 2025 report lists 0 findings. Data as of 2026-09-18.
Data as of Sep 18, 2026 · Source: Federal Audit Clearinghouse (public data)
Single audits by year
One row per audit year as the Federal Audit Clearinghouse accepted it. The auditor named is the one observed on that filing; Marin County Transportation District is recorded in SAN RAFAEL, California under EIN 383835348, and the Clearinghouse records it as a local government.
| Audit year | Fiscal year end | Federal expended | Threshold applied | Auditor observed | Findings | MW / SD | FAC report |
|---|---|---|---|---|---|---|---|
| 2025 | 2025-06-30 | $19,973,191 | $750,000 | MAZE AND ASSOCIATES | 0 | — | 2025-06-GSAFAC-0000396967 |
| 2024 | 2024-06-30 | $3,364,504 | $750,000 | MAZE AND ASSOCIATES | 0 | — | 2024-06-GSAFAC-0000058858 |
| 2023 | 2023-06-30 | $6,132,181 | $750,000 | MAZE AND ASSOCIATES | 0 | — | 2023-06-GSAFAC-0000014988 |
| 2022 | 2022-06-30 | $12,102,604 | $750,000 | BROWN ARMSTRONG ACCOUNTANCY CORPORATION | 0 | — | 2022-06-CENSUS-0000213073 |
| 2021 | 2021-06-30 | $12,226,858 | $750,000 | BROWN ARMSTRONG ACCOUNTANCY CORPORATION | 0 | — | 2021-06-CENSUS-0000213073 |
| 2020 | 2020-06-30 | $16,376,000 | $750,000 | BROWN ARMSTRONG ACCOUNTANCY CORPORATION | 0 | — | 2020-06-CENSUS-0000213073 |
| 2019 | 2019-06-30 | $3,471,249 | $750,000 | BROWN ARMSTRONG ACCOUNTANCY CORPORATION | 0 | — | 2019-06-CENSUS-0000213073 |
| 2018 | 2018-06-30 | $8,550,544 | $750,000 | BROWN ARMSTRONG ACCOUNTANCY CORPORATION | 0 | — | 2018-06-CENSUS-0000213073 |
| 2017 | 2017-06-30 | $1,997,235 | $750,000 | RICHARDSON & COMPANY, LLP | 0 | — | 2017-06-CENSUS-0000213073 |
| 2016 | 2016-06-30 | $8,707,674 | $750,000 | RICHARDSON & COMPANY, LLP | 0 | — | 2016-06-CENSUS-0000213073 |
Which federal programs did this organization report?
From the most recent accepted report. "Major" is the designation the auditor made under 2 CFR 200.518, not ours.
| ALN | Program | Expended | Major |
|---|---|---|---|
| 20.526 | BUSES AND BUS FACILITIES FORMULA, COMPETITIVE, AND LOW OR NO EMISSIONS PROGRAMS | $10,877,146 | Yes |
| 20.507 | FEDERAL TRANSIT FORMULA GRANTS | $4,638,727 | Yes |
| 20.507 | FEDERAL TRANSIT FORMULA GRANTS | $1,036,899 | Yes |
| 20.507 | FEDERAL TRANSIT FORMULA GRANTS | $708,376 | Yes |
| 20.507 | FEDERAL TRANSIT FORMULA GRANTS | $663,146 | Yes |
| 15.954 | NATIONAL PARK SERVICE CONSERVATION, PROTECTION, OUTREACH, AND EDUCATION | $619,854 | No |
| 20.513 | ENHANCED MOBILITY OF SENIORS AND INDIVIDUALS WITH DISABILITIES | $336,466 | No |
| 20.509 | FORMULA GRANTS FOR RURAL AREAS AND TRIBAL TRANSIT PROGRAM | $278,045 | No |
| 20.507 | FEDERAL TRANSIT FORMULA GRANTS | $185,533 | Yes |
| 20.513 | ENHANCED MOBILITY OF SENIORS AND INDIVIDUALS WITH DISABILITIES | $154,173 | No |
| 20.513 | ENHANCED MOBILITY OF SENIORS AND INDIVIDUALS WITH DISABILITIES | $130,127 | No |
| 20.507 | FEDERAL TRANSIT FORMULA GRANTS | $119,626 | Yes |
| 20.513 | ENHANCED MOBILITY OF SENIORS AND INDIVIDUALS WITH DISABILITIES | $88,750 | No |
| 20.507 | FEDERAL TRANSIT FORMULA GRANTS | $69,523 | Yes |
| 20.507 | FEDERAL TRANSIT FORMULA GRANTS | $46,285 | Yes |
| 20.507 | FEDERAL TRANSIT FORMULA GRANTS | $16,840 | Yes |
| 20.507 | FEDERAL TRANSIT FORMULA GRANTS | $2,654 | Yes |
| 20.507 | FEDERAL TRANSIT FORMULA GRANTS | $1,021 | Yes |
What findings did the auditor report?
The reference and the requirement letter are the ones the auditor used. The finding text itself is not reproduced here; the FAC report linked above carries it in full.
The most recent report lists no finding.
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How we computed this
Every row comes from the Federal Audit Clearinghouse record named beside it, one report per audit year, with a resubmission superseding the filing it replaces. The auditor is the one named on that filing — it is not a statement about who audits Marin County Transportation District now. Form 990 figures come from the IRS e-filed return named by its object id. This page exists because the organization filed at least two single audits, or one with a finding.
Cite this page
AuditRadar. “Marin County Transportation District Single Audits.” https://getauditradar.com/single-audits/ca/marin-county-transportation-district-383835348/. Data as of 2026-09-18.