Effective 28 Aug 1993
290.555. Law to apply to certain projects. — Sections 290.550 to 290.580 apply to all labor on public works projects or improvements, whether skilled, semiskilled or unskilled, and whether manual or nonmanual except work done directly by any public utility company and not let to contract.
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(L. 1993 H.B. 416 & 417 § 2)