A state agency that receives services or resources shall reimburse another state agency providing the services or resources the actual cost of providing the services or resources or the nearest practicable estimate of that cost.

A state agency that receives services or resources may advance federal funds to an agency providing the services or resources if the agency receiving the services or resources determines that the advance would facilitate the implementation of a federally funded program.

A state agency that receives services or resources may advance funds to the agency providing the services or resources if an advance is necessary to enable the providing agency to provide the services or resources. If an advance is made, the agencies shall ensure after the services or resources are provided that the providing agency has received only sufficient funds to reimburse its total costs. An advance of funds is a reimbursement for the purposes of Tex. Gov’t Code § 771.008.

See generally Tex. Gov’t Code § 771.007