Texas Legalizes Kei Vehicles with Passage of SB 1816
In a significant development for automotive enthusiasts, Texas has become the latest state to allow kei vehicles on its public roads. Kei cars, known for their compact size and unique designs, are small vehicles that adhere to the Japanese government’s strict regulations on dimensions and engine output. The passage of SB 1816 now permits Texans to legally title, register, and drive these vehicles.
What are Kei Vehicles?
Kei vehicles, or kei-jidōsha, are a classification of small vehicles in Japan that have gained popularity worldwide for their quirky designs and fuel efficiency. While they were never sold new in the United States, kei vehicles can be imported and driven legally if they are 25 years old or older, thanks to a federal exemption from certain regulations.

The 25-Year Import Rule
The 25-year import rule allows vehicles that are at least 25 years old to be imported into the United States, regardless of whether they meet current federal safety and emissions standards. This rule has made it possible for kei vehicles to be brought into the country, but their registration and use have been subject to state-level regulations.
Texas Leads the Way
Texas, known for its spacious highways and large trucks, has taken a surprising step by embracing these miniature vehicles. The state’s decision to allow kei vehicles on its roads is thanks to the efforts of David McChristian, founder of the advocacy group Lone Star Kei. McChristian successfully lobbied Texas legislators to change the state’s DMV policy in April 2024, and the recent passage of SB 1816 has now codified the titling, registration, and use of kei vehicles into law.
Key Provisions of SB 1816
The new law doesn’t specifically mention kei vehicles but creates a broader category for miniature vehicles. To qualify, a vehicle must have four wheels, be self-propelled, comply with federal law (as 25-plus-year-old keis do), and not be classified as a custom vehicle, street rod, neighborhood electric vehicle, golf cart, or off-highway vehicle. With these criteria met, owners can now title, register, and drive their kei vehicles on Texas roads.
Immediate Effect
The bill passed with an overwhelming majority in both houses, receiving only one nay vote between them. As a result, the changes go into effect immediately, making Texas one of the most progressive states in embracing kei vehicles. This is in contrast to Colorado, where a similar law was passed recently but won’t take effect until July 2027.
The enthusiasm for kei vehicles appears to be particularly strong in Texas, and this new legislation is set to delight automotive enthusiasts and kei car owners alike. As other states watch Texas’s move, it will be interesting to see if more follow suit in legalizing these charming, compact vehicles.