MO HB452

Changes the definition of "construction" from "includes" to "means new" construction, reconstruction, improvement, enlargement, alteration, painting and decorating, or major repair.

Establishes different prevailing wage determination methods for specified counties: certain counties must have annual investigations by the department, while all other counties use median hourly wage estimates from the U.S. Bureau of Labor Statistics for construction and extraction occupational codes.

Adds consideration of wage rates paid by trade organizations with 501(c)(6) tax-exempt status to the prevailing wage determination process for specified counties.

Requires prevailing wage determinations to be finalized by July 1 each year, allows 30-day objection period, and provides for department hearings within 60 days of objections with final rulings within 20 days.

Allows annual prevailing wage adjustments based on collective bargaining agreement incremental wage increases, with employers or employee representatives required to notify the department of adjustments.