Tenn. Code § 12-3-802
It is the duty of all state agencies to furnish to the chief procurement officer recommended specifications for all goods and services required and to be required by such state agencies. It is the duty of the chief procurement officer to canvas the recommended specifications and either approve or modify the standard specifications and scopes of work so recommended, subject to the policy and criteria of the procurement commission. All standard specifications and scopes of work shall remain on file in the central procurement office and shall be posted on the central procurement office's website. Each standard specification adopted for any good or service shall fit, insofar as possible, the requirements of the majority of the state agencies that use the same.
T.C.A. § 12-3-802