FMCSA identifies five supporting-document categories and requires motor carriers to retain RODS and applicable supporting documents for six months. Fleets need a consistent collection, association, and retrieval workflow.
What this means for your fleet
Map each document category to its source system, driver or vehicle identifier, date, retention owner, and retrieval method. Test an audit request across dispatch, expense, payroll, and communication systems.
The five FMCSA document categories
- Bills of lading, itineraries, schedules, or equivalent trip-origin and destination records.
- Dispatch records, trip records, or equivalents.
- Expense receipts tied to on-duty-not-driving time.
- Electronic mobile communications through a fleet-management system.
- Payroll records, settlement sheets, or equivalent pay records.
Motor carriers must retain RODS and applicable supporting documents for six months. When more than eight supporting documents exist for a 24-hour period, apply the detailed earliest/latest and six-additional-document rule in 49 CFR 395.11 rather than deleting records by guesswork.
What to check
Use these checks before changing a log, policy, device, integration, or buying decision.
| Check | How to verify |
|---|---|
| 1. Identify the five document categories | Keep the current source naming each of the five categories and map every category to the fleet's source system and retention owner. |
| 2. Capture driver and date association | Retain the original document with driver or vehicle identifier, date, source-system timestamp, association rule, exception, and reviewer. |
| 3. Retain original timestamps | Save source-system and received timestamps, original file or transaction ID, timezone, later correction history, and preservation hash. |
| 4. Apply quantity rules under 49 CFR 395.11 | Cite 49 CFR 395.11 and retain the day, driver, available documents, quantity calculation, selected set, exception, and qualified review. |
| 5. Test retrieval with an ELD day | Retrieve one ELD day and each applicable category by driver, vehicle and date; keep timing, counts, missing items, owner, and remediation. |
Common failure modes
- Saving documents without driver linkage.
- Assuming the ELD export contains every supporting record.
- Editing timestamps to align systems.
Limits and exceptions
This guide does not decide a fact-specific legal exception, certify a record, or guarantee a compliance, safety, cost, or audit outcome. Keep the original ELD record and any edit history. Use the current official rule for applicability and the exact installed-device manual for screen-by-screen actions.
Sources, review date, and limits
Reviewed August 10, 2026. Each source supports only the point described beside it. Rules and product details can change; recheck dynamic facts before changing a fleet workflow or signing a contract.
- Official supporting-documents FAQ covering categories, quantity rules, six-month retention, and pre-2000 engine evidence — Federal Motor Carrier Safety Administration.
- Official carrier and driver implementation resources, compliant-device selection, transfer, training, and operating guidance — Federal Motor Carrier Safety Administration.
- Current first-party product, plan, feature, and support representations; dynamic facts require release-date recheck — Factor ELD.
Review the exact operation
Bring the driver, vehicle, trip, jurisdiction, current official rule, and original ELD record for a qualified determination. Factor ELD can demonstrate its current product; rule applicability remains a fleet compliance decision.