Except for purchases solicited pursuant to the provisions for small purchases set forth in § 37-2-22, all state contracts and purchases shall be solicited through utilization of the Rhode Island Vendor Information Program (RIVIP) as set forth in § 37-2-17.1. Except as otherwise authorized by law, all state contracts shall be awarded by:
(1) Competitive sealed offers, pursuant to § 37-2-18;(2) Competitive negotiation, pursuant to §§ 37-2-19 and 37-2-20;(3) Noncompetitive negotiation, pursuant to § 37-2-21;(4) Small purchase procedures, pursuant to § 37-2-22; or(5) Reverse auctions, pursuant to § 37-2-18.1.P.L. 1989, ch. 526, §2; P.L. 1994 , ch. 137, § 1; P.L. 1996 , ch. 279, § 2; P.L. 1999 , ch. 367, § 1; P.L. 2005 , ch. 296, § 1.