1. Except as otherwise provided in subsection 2, no officer or employee of the State shall purchase on the credit of the State any article of supplies, goods, wares or merchandise or obtain any services to be rendered by any person for the State, except by express permission and written authority previously obtained from the board or commission, or a majority of the members thereof, having control and supervision of the department or office for which such purchase is made or the services are rendered.
2. The provisions of subsection 1 shall not apply where such officer or employee has specific authority to purchase or obtain services conferred upon him or her by statute.
3. The State Board of Examiners shall not allow nor shall the State Treasurer pay any claim of any person for goods sold or services rendered unless the same were sold or rendered in accordance with the provisions of this section.