Miss. Code Ann. § 31-9-9

All laws or parts of laws requiring the various state institutions, departments, and agencies, the boards of supervisors of the various counties, and the governing authorities of the various municipalities, drainage districts, and other taxing units to advertise or request and receive bids for the purchase of furniture, equipment, supplies, and other commodities are hereby waived for the purposes of this chapter and shall not be applicable to purchases made hereunder.