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 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. The tool covers brakes, tires, lights, steering, coupling devices, and emergency equipment — with an integrated air brake timer, per-item OOS verdict, and DVIR export.

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, see the OOS enforcement deadline countdown, and get replacement recommendations if your device has been revoked. Regulation: 49 CFR §395.8(a)(1).

To understand your roadside inspection history and audit exposure, use the free CSA Score Estimator — enter violations from your inspection reports and get estimated percentile scores across all 7 FMCSA BASICs using published SMS severity weights and time-decay methodology. Carriers above the intervention threshold (65th percentile for Unsafe Driving and HOS; 80th percentile for Driver Fitness, Controlled Substances, Vehicle Maintenance, and Hazmat) face increased audit targeting and insurance surcharges of 15–40% at renewal. Source: FMCSA Safety Measurement System (SMS).

For drug and alcohol program management, use the free DOT Drug Testing Compliance Calendar Generator — enter your driver pool size and DOT modal agency to generate a full-year random testing schedule, Clearinghouse query deadlines, MIS annual report reminders (due March 15), and an audit-ready documentation checklist. The tool supports FMCSA, FTA, FAA, FRA, and PHMSA-regulated employers with agency-specific testing rates. Carriers running fewer than the required 50% drug / 10% alcohol tests per quarter are the single most common adverse finding in FMCSA compliance reviews. 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.