Motor Carrier Act of 1935
The federal law that first gave the government authority to regulate interstate trucking.
Selling a commercial truck? We buy nationwide, any condition, any DOT status.
Sell My TruckOverview
The Motor Carrier Act of 1935 (Pub. L. 74-255, 49 Stat. 543) was the first federal law to place commercial motor carriers under meaningful federal oversight. Enacted on August 9, 1935, it extended the regulatory authority of the Interstate Commerce Commission — which had previously governed railroads — to cover buses and trucks operating in interstate commerce.
Before this law, trucking was largely unregulated at the federal level. Carriers operated without uniform safety standards, rate controls, or requirements to demonstrate fitness to operate. The Motor Carrier Act changed that by requiring carriers to obtain certificates of public convenience and necessity, meet safety standards, and operate under ICC oversight.
While the Interstate Commerce Commission that enforced this law no longer exists — it was abolished in 1995 — the Motor Carrier Act of 1935 established the legal framework that all subsequent federal trucking regulation has built on. The safety authority first granted by this law now rests with the Federal Motor Carrier Safety Administration (FMCSA).
Key Provisions
- Gave the ICC authority to regulate interstate motor carriers for the first time in U.S. history.
- Required carriers to obtain a certificate of public convenience and necessity before operating across state lines.
- Established the first federal requirements for driver qualifications, hours of service, and vehicle safety.
- Required brokers to obtain brokerage licenses demonstrating fitness and financial responsibility.
- Set the legal foundation that all subsequent federal trucking regulation — including today’s FMCSA rules — is built on.
Why It Matters to Truck Owners
Every federal trucking rule that exists today — from hours of service to CDL requirements to drug testing — traces its legal authority back to the Motor Carrier Act of 1935. Understanding this law helps you understand why federal regulation of trucking exists at all, and why it applies uniformly across all 50 states regardless of where a carrier is based.
Frequently Asked Questions
What did the Motor Carrier Act of 1935 actually do?
It placed interstate motor carriers under federal regulatory authority for the first time, requiring them to obtain operating certificates, meet safety standards set by the ICC, and operate under uniform federal oversight rather than a patchwork of state rules.
Is the Motor Carrier Act of 1935 still in effect?
The original act was substantially revised and incorporated into Title 49 of the U.S. Code over the decades. The ICC that enforced it was abolished in 1995, but the safety authority it created was transferred to DOT and eventually FMCSA, which still exercises it today.
Why does this 1935 law matter to truck owners today?
Modern FMCSA regulations governing everything from driver qualifications to vehicle inspections derive their legal authority from the framework this law established. It is the historical and legal root of every federal trucking compliance requirement you deal with.
Read the official legal text: 49 Stat. 543 (Pub. L. 74-255) — govinfo.gov
Related Federal Trucking Laws
- Motor Carrier Safety Act of 1984
- ICC Termination Act of 1995
- Motor Carrier Safety Improvement Act of 1999
- Part 365 — Rules Governing Applications for Operating Authority
- Part 371 — Brokers of Property
This page is provided for informational purposes only and is not legal advice. Always verify current requirements at fmcsa.dot.gov or with a qualified transportation attorney.
Ready to Sell Your Commercial Truck?
No inspections. No compliance hassle. We buy trucks in any condition, in all 50 states.
Sell My Truck