Tennessee Code Title 12. Public Property, Printing and Contracts § 12-4-113

(a) If a statute, ordinance, resolution, rule or regulation mandates the use of competitive bidding of any kind or nature whatsoever, by any state agency, county or municipal corporation, then, notwithstanding such law, ordinance, resolution, rule or regulation, no addenda within less than forty-eight (48) hours of the bid opening date, excluding weekends and legal holidays designated in § 15-1-101, shall be permitted unless the bid deadline is extended for a reasonable time as determined by the purchasing agent, which shall not be less than forty-eight (48) hours excluding weekends and legal holidays designated in § 15-1-101, to allow for any necessary changes to the bid documents and to allow bidders to resubmit their bids accordingly.

(b) Any questions concerning the bid documents must be received by the designer no less than ninety-six (96) hours before bid opening date.

(c) This section does not apply to the central procurement office, to any procurement conducted pursuant to chapter 3 of this title, to any department of transportation contracts, or to any state or local agency contracts funded in whole or in part with state or federal highway funds.