A push to make seat belt use mandatory in Kansas City moves forward. A push to make seat belt use mandatory in Kansas City moves forward. Skip to content. NOWCAST KMBC 9 News at 10PM.

Front seat belt warning systems must comply with the new rule by Sept. 1, 2026 and rear seat belt warning systems must comply by Sept. 1, 2027, the rule states.

The current required seat belt alert is mandated in federal motor vehicle safety standard 208. To be satisfied, the rule requires "a short-duration audio-visual seat belt warning for the driver ...

Front seat belt warning systems must comply with the new rule by Sept. 1, 2026, and rear seat belt warning systems must comply by Sept. 1, 2027, the rule states.