MO HB3463

Prohibits railroads operating in Missouri from running trains exceeding 8,500 feet in total length on any main track or branch line

Missouri Department of Transportation granted authority to adopt rules for implementation, enforcement, measurement procedures, route exemptions, and violation penalties

Rulemaking authority subject to Chapter 536 administrative procedures and legislative review requirements

Any rules proposed or adopted after August 28, 2026, become invalid if the General Assembly's powers to review, delay, or annul rules are held unconstitutional