As used in this article, unless the context requires a different meaning: “Construction contract” means a contract relating to the construction, alteration, repair, or maintenance of a building, structure, or appurtenance to such building or structure, including moving, demolition, and excavation connected with such building or structure, or any provision contained in any contract relating to the construction of projects other than buildings. “Contractor” or “general contractor” means the entity that has a direct contract with any “state agency” as defined herein or any agency of local government as discussed in § 2.2-4352. “Debtor” means any individual, business, or group having a delinquent debt or account with any state agency that obligation has not been satisfied or set aside by court order or discharged in bankruptcy. “Payment date” means either (i) the date on which payment is due under the terms of a contract for provision of goods or services or (ii) if such date has not been established by contract, (a) 30 days after receipt of a proper invoice by the state agency or its agent or 45 days after receipt by the local government or its agent responsible under the contract for approval of such invoices for the amount of payment due or (b) 30 days after receipt of the goods or services by the state agency or 45 days after receipt by the local government, whichever is later. “State agency” means any authority, board, department, instrumentality, institution, agency, or other unit of state government. “State agency” does not include any county, city, or town or any local or regional governmental authority. “Subcontractor” means any entity that has a contract to supply labor or materials to the contractor to whom the contract was awarded or to any subcontractor in the performance of the work provided for in such contract.