Illinois DVIR and vehicle inspection rules

Last reviewed November 12, 2026.

This page summarizes what we could verify from official sources about how Illinois applies driver vehicle inspection and related vehicle-inspection rules. It is not a complete reprint of Illinois law.

Interstate operations

If you operate a commercial motor vehicle in interstate commerce to, from, or through Illinois, the federal Motor Carrier Safety Regulations (FMCSRs) apply, including 49 CFR Part 396 and the DVIR rules in § 396.11 and § 396.13. State rules do not replace those federal interstate requirements. Start with What a DVIR is and who must complete one.

State agency

For Illinois-specific questions, including how the rules apply to operations that stay entirely inside Illinois, contact Illinois State Police.

What official sources say about state adoption

The official Illinois Compiled Statutes, 625 ILCS 5/18b-105, adopt by reference specified parts of Title 49 of the Code of Federal Regulations, as now in effect, including Part 396 — Inspection, Repair and Maintenance, along with Parts 40, 380, 382, 383, 385, 386 Appendix B, 387, 390, 391, 392, 393, 395 (with a statutory exception), and 397.

Subsection (c) lists provisions that shall not apply to those intrastate carriers, drivers, or vehicles subject to subsection (b). The listed exceptions we reviewed concern certain equipment sections in Part 393, the minimum-age rule in § 391.11(b)(1), hours-of-service rules for specified agricultural and grain operations, and limited physical-qualification paragraphs for certain drivers. The official text we reviewed does not list 49 CFR 396.11 or 396.13 among those subsection (c) exceptions.

Intrastate operations and variations

Who is an “intrastate carrier” subject to these adopted rules is governed by Chapter 18b, including definitions in 625 ILCS 5/18b-101 and related sections. This page does not restate a numeric Illinois weight threshold because we did not independently quote that definition section in this review. Confirm which vehicles and carriers are covered, and any later amendments, with the Illinois State Police and by reading Chapter 18b in full.

What we could not independently verify from official sources in this review:

The official statutory definition of the vehicles and carriers subject to 625 ILCS 5/18b-105 (including any weight threshold in 18b-101 or related sections) and any later amendments after Public Act 102-982 as noted on the official compilation.

Please confirm those points with the state agency linked on this page before relying on them.

Related federal guides

Sources

Need a printable form? DVIR.io offers free FMCSA-aligned PDF templates, including post-trip, pre-trip, bus and motorcoach, and intermodal reports.

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This page is general information only. It is not legal advice, and it is not advice on any specific DVIR or vehicle-inspection requirement. Rules can change, and how they apply depends on your operation, your vehicles, and your location. Get advice in your own area on your specific state and federal requirements. If you have a question for DVIR.io, use the contact form.