The bill aims to enhance consumer choices regarding replacement tires by ensuring that state and local governments cannot impose restrictions on the manufacture, sale, or use of tires that comply with federal motor vehicle safety standards. It emphasizes the importance of durable tires for safety in challenging driving conditions and asserts the right of individuals to choose tires that meet these federal standards. Specifically, the bill prohibits state and local agencies from regulating tires based on energy efficiency or rolling resistance ratings, thereby protecting consumer freedom in tire selection.

Additionally, the bill amends existing laws to clarify that the Department of Ecology cannot adopt restrictions on tires, even if such restrictions exist in the California Code of Regulations. It also establishes that state and local agencies cannot regulate tire use or sales as part of greenhouse gas reduction strategies. The bill includes several new sections to reinforce these provisions and ensure consistency with federal standards, ultimately promoting safety and consumer choice in the tire market.