Assembly Bill 387 aims to correct errors and clarify the intent of 2025 Wisconsin Act 15. The bill amends the statutory provision regarding registration plate fees, changing the effective year from 2026 to 2025, ensuring consistency with the intended implementation date. Additionally, it corrects a cross-reference in the effective date provision related to heavy vehicle registration fees, updating the reference from subsection (2) (c) to (q) to (2m).

Furthermore, the bill proposes an increase in the appropriation for the Joint Committee on Finance by $2,600,000 for the fiscal year 2025-26. This additional funding is designated to support the Department of Transportation's public protective services hearing protection program. Overall, the bill serves to rectify legislative inconsistencies and enhance funding for essential services.