Senate Bill No. 20 amends existing laws regarding the operation of street-legal utility vehicles and other motor-driven vehicles in Oklahoma. The bill modifies the definition of a "street-legal utility vehicle" to include specific requirements such as a minimum engine displacement of 400 cc and a speed capability of at least 50 miles per hour, replacing the previous threshold of 45 miles per hour. Additionally, it updates statutory references and clarifies that operators of these vehicles do not need an "M" endorsement on their Class D license, provided they are at least 16 years old and possess a valid Oklahoma driver license.

The bill also expands the permissible use of street-legal utility vehicles on certain stretches of U.S. highways, specifically allowing operation in counties with populations under 75,000 and on highways with speed limits of 50 miles per hour or less in more populous counties. It includes provisions for the operation of golf carts and utility vehicles under specific conditions, such as municipal ordinances and county approvals. The act is set to take effect on November 1, 2025.