Free DOT Compliance Tools

CDL Renewal Requirements by State

State-specific CDL validity periods, renewal fees, required documents, and renewal windows for all 50 US states. CDL renewal is governed by both 49 CFR Part 383 and individual state DMV requirements. Select your state for a full breakdown.

Commercial Vehicle Registration Renewal by State

State-specific renewal windows, required documents, fees, grace periods, and direct DMV renewal links. Interstate vehicles over 26,000 lbs require IRP apportioned registration in addition to standard state plates.

Regulatory Sources

All tools are built against primary FMCSA and FHWA regulatory sources. Calculations are updated when the eCFR is amended. For official compliance guidance, always verify against the current federal register:

About These Free DOT Compliance Tools

TruckComplianceHQ builds free tools for US truck drivers and fleet operators to stay compliant with FMCSA regulations. Every calculator is built against current federal standards under 49 CFR and updated when state DMV requirements change. No account required to use any free tool. All data is sourced from FMCSA.dot.gov and individual state DMV and legislature records.

For dispatch readiness, use the HOS Calculator to verify a driver is within hours-of-service limits, the DOT Physical Tracker to confirm the medical certificate is current, the CDL Expiration Calculator to verify the license is valid, and the Registration Renewal Tracker to confirm the vehicle registration is current before dispatch. All four can be expired simultaneously — each requires a separate check.

For annual Driver Qualification file compliance, use the free MVR Annual Review Calculator to track when each CDL driver's annual Motor Vehicle Record review is due under 49 CFR §391.25. Missing MVR reviews are among the top violations found during FMCSA compliance audits — the tool uses the correct rolling 12-month window, not a calendar year, and includes fleet-wide tracking with CSV export and FMCSA audit risk scoring per driver.

If any of your drivers carry hazardous materials, the HazMat Endorsement Tracker is coming soon — it will monitor endorsement expiry and TSA threat assessment renewal dates. HazMat endorsements expire on the same cycle as the CDL (up to 5 years) but also require a separate TSA background check — missing either renewal puts the driver out of service immediately for any HazMat load. Regulation: 49 CFR §383.141.

For heavy load operations, use the Truck Weight Limit Calculator to verify your load is legal under the federal bridge formula (23 USC §127) across every state on your route. Before any roadside inspection, run the FMCSA Out-of-Service Risk Assessment to identify which vehicle systems are most likely to generate an OOS order and get a prioritized repair list before the inspector does.

Before every run, use the Pre-Trip Inspection Checklist to walk through every FMCSA-required inspection point under 49 CFR §396.13. A deeper Brake Inspection Compliance Checker is coming soon — it will cover pushrod stroke limits, lining thickness, slack adjuster travel, and drum/rotor condition with exact CVSA OOS thresholds. Regulation: 49 CFR §393.48–§393.55.

To verify your Electronic Logging Device is still compliant, use the FMCSA ELD Compliance Checker — search by device name, model number, or ELD identifier to confirm registration status and get replacement recommendations if revoked. Regulation: 49 CFR §395.8(a)(1).

To understand your roadside inspection history and audit exposure, use the free CSA Score Estimator — estimated percentile scores across all 7 FMCSA BASICs using published SMS severity weights and time-decay methodology. Source: FMCSA Safety Measurement System (SMS).

For drug and alcohol program management, use the free DOT Drug Testing Compliance Calendar Generator — full-year random testing schedule, Clearinghouse query deadlines, MIS annual report reminders (due March 15), and an audit-ready documentation checklist. Regulation: 49 CFR §382.305.

These tools complement our full fleet compliance dashboard, which automates tracking and alerts for your entire fleet. If you manage more than one truck, the dashboard handles CDL, medical cards, drug tests, vehicle registration, DOT inspections, and insurance — all in one place, with daily email alerts. Carriers can also use the Random Drug Testing Calculator and DQ File Checker to stay audit-ready across all FMCSA BASIC categories.