2025 House Bill 4470

Highways: bridges; Mackinac Bridge; designate as a key facility.

A bill to amend 1931 PA 328, entitled “The Michigan penal code,” by amending section 552c (MCL 750.552c), as added by 2005 PA 305.

Official record

AI Analysis – Experimental

Amends the Michigan Penal Code to enhance security around key facilities by defining unauthorized entry as a felony and specifying requirements for facility barriers and signage.

Introduced in the House

May 7, 2025

Introduced by Rep. David Prestin (R-108) and 16 co-sponsors

Co-sponsored by Reps. Greg Markkanen (R-110), Cameron Cavitt (R-106), Karl Bohnak (R-109), Angela Rigas (R-79), Donni Steele (R-54), Alicia St. Germaine (R-62), Samantha Steckloff (D-19), Timothy Beson (R-96), John Roth (R-104), Ken Borton (R-105), Julie Brixie (D-73), Alabas Farhat (D-3), Parker Fairbairn (R-107), Tullio Liberati (D-2), Curtis VanderWall (R-102) and Jay DeBoyer (R-63)

Referred to the Committee on Transportation and Infrastructure

Oct. 28, 2025

Reported without amendment

Dec. 9, 2025

Passed in the House 92 to 8 (details)

Motion to give immediate effect by Rep. Brian BeGole (R-71)

The motion prevailed by voice vote

Received in the Senate

Dec. 10, 2025

Referred to the Committee on Transportation and Infrastructure