Section 528 - County laboratories; bills and accounts; payment1. Unless otherwise provided by law, the director or other person in charge of each laboratory shall certify all bills and accounts including salaries and wages, and transmit them to the board of supervisors of the county which shall provide for their payment in the same manner as other charges against the county.2. The board of supervisors of a county not having a purchasing agent may make an appropriation for the maintenance of such laboratory and direct the county treasurer to pay all bills, accounts, salaries and wages which are approved by the director of the laboratory within the amount of such appropriation, subject to such regulations as to the payment and audit thereof as the board of supervisors may deem proper.N.Y. Pub. Health Law § 528