(a) The department shall execute a cooperative agreement with the lead applicant agency or the agency responsible for carrying out the work for reimbursement of approved project expenditures, using funds allocated by the commission for that purpose and project phase. To reduce time and financial burden on lead applicant agencies, the department shall use electronic reimbursement procedures to the extent prudent and practical.
(b) The cooperative agreement shall specify how additional costs are to be covered, if necessary, and how savings are to be used or distributed, if available, among all the various funding sources being used for the project.