If your state or local government fleet received federal grant funding — FTA transit awards, DOJ equipment grants, FEMA disaster response, or any pass-through federal money — the Single Audit under OMB Uniform Guidance (2 CFR Part 200) is the compliance event you have to be ready for. As of fiscal years beginning October 1, 2024, the threshold jumped from $750,000 to $1,000,000 in federal awards expended. This guide walks who's in scope and what fleet records support the broader audit-readiness process. Book a demo .
Does Your Fleet Operation Trigger a Single Audit?
Two questions in order: when did your fiscal year begin, and how much federal award funding did you expend during it?
A Single Audit is not a financial audit with a few extra steps — it's an organization-wide examination that tests whether your entity has complied with the specific requirements attached to every federal program from which you received funds. When federal money touches your fleet — buying a transit bus, procuring a police vehicle, funding emergency response equipment — the maintenance records, procurement documentation, work orders, and expenditure trail on that asset become part of what supports the audit. This guide walks the fleet-side of that support, not the audit itself.
The Uniform Guidance areas that touch fleet operationsWhere 2 CFR Part 200 requirements meet real fleet activities
2 CFR Part 200 spans internal controls, procurement, allowable costs, documentation, record retention, and audit requirements. Not every subpart directly affects fleet operations, but several do — and the ones that do determine what a fleet team needs to have organized and retrievable. Individual grant programs (FTA, DOJ, FEMA) can add their own requirements on top of these baselines. Book a demo to see how per-asset fleet records support the categories below
Internal controls
Recipients must establish and maintain effective internal controls providing reasonable assurance of managing federal awards in compliance with federal statutes, regulations, and award terms. The 2024 revisions specifically added cybersecurity as an internal-control expectation.
Fleet application: Documented inspection routines, defect-to-work-order workflow, and audit trail on who did what and when — the basic control environment for federally-funded assets.
Procurement standards
Governs how recipients procure goods and services with federal award funds — competitive procedures, conflict-of-interest policies, documentation of the procurement decision, and cost/price analysis for procurements over the simplified acquisition threshold.
Fleet application: Purchase orders and vendor selection records for parts, tires, fluids, and repair services used on federally-funded assets. Documentation of the procurement decision, not just the invoice.
Allowable costs & cost principles
Costs must be necessary, reasonable, allocable to the federal award, conform to any limitations or exclusions, be consistent with policies and procedures, and be adequately documented. Costs must be authorized under the specific terms of the award.
Fleet application: Being able to tie a specific maintenance expenditure back to the federally-funded asset it was performed on — and demonstrating the cost was necessary and reasonable given the vehicle's condition and use.
Record retention
Financial records, supporting documents, statistical records, and all other records pertinent to a federal award must be retained for a period of three years from the date of submission of the final expenditure report (with specific exceptions for equipment records, litigation, and audit findings).
Fleet application: Inspection records, maintenance history, work orders, parts and repair documentation on federally-funded assets need to remain retrievable for the retention period — not archived to a paper cabinet nobody can find.
Equipment records
Equipment acquired with federal award funds must be tracked with specific records including description, serial number, source, title, acquisition date and cost, percent federal participation, location, use, condition, and ultimate disposition. Physical inventory verification required at least every two years.
Fleet application: Asset-level records with acquisition documentation, current condition (from inspections), ongoing use (from utilization), and location — the exact profile a CMMS with per-asset history maintains for every unit.
Audit requirements
Sets the Single Audit obligations for non-federal entities expending at or above the threshold. Governs SEFA preparation, auditor selection, reporting timelines (report package due within the earlier of 30 days after auditor report or 9 months after audit period per 200.512(a)(1)), and corrective action plans for findings.
Fleet application: The audit itself is a finance/audit function, but auditors sampling maintenance expenditures on federally-funded fleet assets will ask for the underlying records — work orders, inspections, procurement docs, tied to specific unit IDs.
Federal funding programs that commonly touch public fleetsNot exhaustive — and every program has its own additional requirements
Below is a short list of federal programs that frequently support state and local government fleet or transportation activities. This is not a comprehensive list, and each program has program-specific compliance requirements beyond the baseline Uniform Guidance rules. Your grant manager or program officer is the authority on any specific award's requirements.
FTA (Federal Transit Administration)
Transit bus procurement, paratransit vehicles, transit fleet maintenance facility funding, and formula/discretionary grants supporting public transit operations. FTA has specific asset management (TAM) rule requirements under 49 CFR Part 625 that affect how transit assets are inventoried and maintained.
DOJ (Department of Justice)
Byrne JAG (Justice Assistance Grants) and COPS Hiring Program funds sometimes used for police vehicle procurement, communications equipment, and law enforcement fleet upgrades. Each program has its own allowable-cost guidance and specific reporting.
FEMA (Federal Emergency Management Agency)
AFG (Assistance to Firefighters Grants), SAFER, and various disaster recovery programs that fund emergency response vehicles, fire apparatus, and specialized equipment. FEMA equipment often has post-award reporting and disposition rules that persist for years.
Pass-through state & regional programs
Federal funds passed through state DOTs, state emergency management, MPOs, and other pass-through entities. These count as federal expenditures for Single Audit purposes even though the direct funding relationship is with the state, not the federal agency.
Regardless of which programs fund your fleet, the underlying discipline is the same: every federally-funded asset needs a retrievable record trail. Book a demo to see how per-asset records are structured for cross-program retrieval
Organizing fleet records so auditors can trace the moneyThe 5 traces auditors typically want to follow
When a Single Audit sampler picks a maintenance expenditure to test on a federally-funded asset, they want to trace it end-to-end: from the federal award through the procurement decision to the specific work performed to the resulting condition of the asset. Organizing fleet records around those traces — before the auditor asks — is what audit-readiness actually looks like in practice. Start a free trial and structure your fleet records around retrievable per-asset history.
Asset → funding source
Every federally-funded asset in the fleet should be identifiable back to its funding source: which grant program purchased it, what percent federal participation, acquisition documentation. This is the anchor for every downstream trace.
Maintenance activity → asset
Every work order, inspection, and repair tied to a specific unit ID. When an auditor asks "what maintenance happened on this transit bus in FY2025," the answer is one query, not a paper hunt across three offices.
Expenditure → maintenance activity
Parts invoices, labor charges, external contractor costs linked to the specific work order that consumed them. The invoice by itself is inadequate — it needs to be tied to the operational activity it supported.
Expenditure → procurement documentation
The procurement decision that led to the vendor selection: purchase order, competitive quotes where required, sole-source justification where applicable. 2 CFR 200.318-327 governs the standards; the underlying documentation is what auditors examine.
Asset → current condition & use
Under 2 CFR 200.313, equipment records must include condition and use. Inspection history and utilization records provide the ongoing evidence — not just at acquisition but throughout the asset lifecycle up to the required physical inventory verification (at least every 2 years).
Auditors don't ask for these traces one at a time — they sample transactions and expect the full chain in a single retrieval. Records structured around these five traces before the audit make sampling day a document pull, not a document hunt. Book a demo to see how per-asset records handle audit sampling
From a public works fleet manager after a first Single Audit
We crossed the $1M expended threshold for the first time in FY2025 — three FTA transit awards plus a FEMA equipment grant plus a DOJ vehicle purchase pushed us over. Our finance team knew what a Single Audit was; the fleet side had never been through one. The auditor sampled 12 maintenance expenditures on federally-funded assets and wanted the full trace on each — work order, inspection history, parts invoice, procurement documentation.
Under our old paper system, those 12 traces would have taken us two weeks. In HVI, every asset has its unit ID, every WO links to inspections and parts, every parts consumption ties to an invoice reference. We pulled all 12 in a day and a half. Auditor's finding on the fleet side: no exceptions. That's not because we ran a perfect year — it's because the records were where they needed to be when he needed them.
Frequently asked questions
What is the current Single Audit threshold for state and local government fleet operations?
Under 2 CFR 200.501, a non-federal entity that expends $1,000,000 or more in federal awards during a fiscal year beginning on or after October 1, 2024 is subject to the Single Audit requirement. This threshold was raised from the prior $750,000 under OMB's 2024 revisions to the Uniform Guidance. Fiscal years beginning before October 1, 2024 continue to use the $750,000 threshold. The test is federal awards expended during the fiscal year — not awards received, not awards obligated — and expenditures across all federal funding sources (direct federal awards, pass-through funds from state or other entities, federal loan activity) are aggregated for the threshold calculation. Your finance and audit team is the authority on your specific situation; this article summarizes the general rule but should not substitute for organization-specific analysis.
Does HVI perform the Single Audit or determine grant allowability?
No. HVI does not perform Single Audits, does not certify Uniform Guidance compliance, does not guarantee audit outcomes, and does not automatically determine whether specific costs are allowable under a federal award. Audit performance is done by independent auditors following AICPA and GAO standards; allowability determinations are made by the recipient's own grant management staff in consultation with the awarding agency and Uniform Guidance cost principles at 2 CFR Part 200 Subpart E. What HVI does is support the fleet-side records that auditors sample: asset-level maintenance history queryable by unit ID, digital inspection records with photo evidence, work orders linked to inspections and defects, parts records with vendor and cost data, and searchable historical records. Those records help support the broader audit-readiness process that your finance, audit, and grant management teams lead.
Which federal fleet grants might expose a government fleet to a Single Audit?
Any federal award that funds fleet-related activity can count toward the Single Audit threshold if aggregated federal expenditures reach or exceed the applicable dollar threshold in a fiscal year. Common examples that touch public fleets include FTA formula and discretionary grants for transit vehicle procurement and maintenance; DOJ programs (Byrne JAG, COPS Hiring) that sometimes fund law enforcement vehicles; FEMA programs (AFG, SAFER, disaster recovery) that fund emergency response apparatus and equipment; and pass-through federal funds distributed via state DOTs, state emergency management agencies, or MPOs. This is not an exhaustive list — program eligibility and current funding varies significantly, and each program has its own allowable-cost, reporting, and asset-management requirements beyond the baseline Uniform Guidance rules. Your grant administrator or the funding agency's current guidance is the authoritative source for any specific award you're managing.
How long do fleet maintenance records for federally-funded assets need to be retained?
Under 2 CFR 200.334, financial records, supporting documents, statistical records, and all other records pertinent to a federal award generally must be retained for three years from the date of submission of the final expenditure report for the award. Specific exceptions extend the retention period: if litigation, claim, or audit is started before the three-year period expires, records must be retained until resolution; equipment records must be retained for three years after final disposition of the equipment; indirect cost rate computations and related records have their own retention rules. Individual grant programs and pass-through entities can add longer retention requirements. Practical implication for fleet records: inspection history, maintenance work orders, parts and repair documentation, and asset records on federally-funded units need to remain retrievable well beyond the fiscal year they occurred — not archived to a paper cabinet nobody can find, but queryable when an auditor asks.
What fleet records do auditors typically sample during a Single Audit?
Auditors performing compliance testing on federally-funded fleet activity typically sample from several categories: procurement transactions (was the vendor selection consistent with 2 CFR 200.317-327 procurement standards?); expenditure documentation (was the cost allowable, necessary, reasonable, and allocable under Subpart E cost principles?); equipment records (do the 2 CFR 200.313 required elements exist for federally-funded equipment — description, serial number, source, title, acquisition date and cost, percent federal participation, location, use, condition, disposition?); and internal control documentation (does the recipient have effective controls over federal awards per 2 CFR 200.303?). For each sampled transaction, the auditor traces from the federal award down through the procurement, the work performed, the parts consumed, and the resulting asset condition. The specific procedures depend on the OMB Compliance Supplement guidance for each program — the 2025 Compliance Supplement introduced refined procedures and expanded documentation expectations. Your auditor scopes the specific sampling; your job on the fleet side is having the records retrievable when asked.
Make fleet records the easy part of your next Single Audit
HVI supports digital inspection records, asset-level maintenance history, work orders linked to source inspections, parts records with vendor and cost documentation, and searchable historical records tied to specific unit IDs. The Single Audit itself is your finance and audit team's work; grant allowability is your grant management team's decision. HVI keeps the fleet-side records organized and retrievable so those teams have what they need when auditors ask.
No credit card · No hardware · Fleet records structured for retrieval on day one
