Expressing support for the designation of the week of September 20 through September 26, 2021, as "Rail Safety Week" in the United States, and supporting the goals and ideals of Rail Safety Week to reduce rail-related accidents, fatalities, and injuries.

House Resolution 666 is a non-binding measure that officially recognizes the week of September 20 through September 26, 2021, as "Rail Safety Week" in the United States. The resolution aims to raise public awareness about the dangers associated with highway-rail grade crossings and trespassing on railroad rights-of-way. By supporting these goals, the bill encourages federal, state, and local efforts to educate citizens on safe behaviors around tracks to help reduce preventable accidents, injuries, and fatalities.