The commissioner of administration may, when in the commissioner’s best judgment it is in the best interests of the state, delegate the commissioner’s procurement authority pursuant to this chapter to an individual department; provided, however, that each instance of single feasible source purchasing authority in excess of ten thousand dollars under section 34.044 must be specifically delegated by the commissioner. The delegation may allow departments to negotiate in accordance with section 34.042 the purchase of services for patients, residents or clients with funds appropriated for this purpose. In accepting this delegated authority the department acknowledges its ability to, and agrees to, fulfill all of the requirements of this chapter in making purchases and entering into contracts and keeping records. No claim for payment based upon any purchase under this section shall be certified by the commissioner unless accompanied by such documentation of compliance with the provisions of this chapter as the commissioner may require. Any department that fails to fulfill all such requirements may have its delegated authority rescinded by the commissioner of administration.