Mich. Comp. Laws § 129.206: Public works, contractor's bond; definitions.

Sec. 6.

A "claimant" means a person having furnished labor, material, or both, used or reasonably required for use in the performance of the contract. "Labor and material" includes that part of water, gas, power, light, heat, oil, gasoline, telephone service or rental of equipment directly applicable to the contract.