Amends the Department of Transportation Law of the Civil Administrative Code of Illinois. Provides that, on or before July 1, 2025, the Department of Transportation shall create and implement a Type II Noise Suppression Program to provide noise abatement on existing highways in the State. Provides that, on or before July 1, 2025, the Department shall provide notice to the General Assembly that the Noise Suppression system has been activated. Effective July 1, 2024. Senate Floor Amendment No. 1 Replaces everything after the enacting clause. Amends the Department of Transportation Law of the Civil Administrative Code of Illinois. Provides that, on or before July 1, 2025, the Department of Transportation may, subject to appropriation, create and implement a Type II Noise Suppression Program to provide noise abatement on existing highways in the State. Effective July 1, 2024.