This bill establishes regulations regarding the length of trains operating in Washington State, aiming to enhance public safety and environmental protection. It prohibits any railroad from operating trains exceeding 8,500 feet in length without approval from the Washington Utilities and Transportation Commission. The bill recognizes the safety risks posed by excessively long trains, particularly in the state's diverse geographical terrain, and asserts the state's authority to regulate railroad operations to safeguard communities and sensitive environments.

The legislation outlines penalties for violations, with fines starting at $25,000 for the first offense and escalating for subsequent violations. It also allows the commission to authorize exceptions for trains up to 10,000 feet in length under specific conditions, such as additional crew members and safety equipment. Furthermore, the bill includes provisions for the commission to recover costs associated with processing these requests and emphasizes the commission's responsibility for enforcement. The act is structured as a new chapter in Title 81 of the Revised Code of Washington.