Unless otherwise authorized by law, state contracts shall be awarded by competitive sealed solicitations by the central procurement office in the manner set forth in § 12-3-502, except as provided in § 12-3-401 and §§ 12-3-503 — 12-3-508.
Award of contracts by competitive sealed solicitations
Tenn. Code Ann. § 12-3-501, under Competitive Solicitations.
Tenn. Code Ann. § 12-3-501