Alaska Stat. § 36.30.130
(a) The procurement officer shall give adequate public notice of the invitation to bid at least 21 days before the date for the opening of bids. If the procurement officer determines in writing that a shorter notice period is advantageous for a particular bid and adequate competition is anticipated, the 21-day period may be shortened. Notice shall be posted on the Alaska Online Public Notice System (AS 44.62.175). The time and manner of notice must be in accordance with regulations adopted by the commissioner of administration. When practicable, notice may include