Alaska Stat. § 04.21.050 – Proof of age and of not being restricted from purchasing alcoholic beverages

(a) If a licensee or an agent or employee of the licensee questions or has reason to question whether a person entering licensed premises, or ordering, purchasing, attempting to purchase, or otherwise procuring or attempting to procure alcoholic beverages,
1. (1) has attained the age of 21 years or is entering without consent in violation of AS 04.16.049(a)(2) and has not attained the age of 16 years, that licensee, agent, or employee shall require the person to furnish proof of age acceptable under (b) of this section or proof of consent in a form determined by the board; if the person questioned does not furnish proof of age acceptable under (b) of this section, or if a licensee, agent, or employee questions or has reason to question the validity of the proof of age furnished, the licensee, employee, or agent shall require the person to sign a statement that the person is over the age of 21 or 16 years, as appropriate; this statement shall be made on a form prepared by and furnished to the licensee by the board;
2. (2) is restricted from purchasing alcoholic beverages under AS 04.16.160, the licensee, agent, or employee may, but has no duty or obligation to, require the person to furnish proof acceptable under (b) of this section that the person is not restricted from purchasing alcoholic beverages or require the person to sign a statement that the person is not restricted from purchasing alcoholic beverages under AS 04.16.160; this statement shall be made on a form prepared by and furnished to the licensee by the board.
(b) Except as provided in AS 04.16.160, a valid driver's license or a valid identification card is acceptable as proof of age or that the person is not restricted from purchasing alcoholic beverages when used for identification in the purchase of alcoholic beverages and for securing entry to and remaining on premises where alcoholic beverages are sold if the license or identification card is made of or encased in plastic and contains a photograph of the licensee or card holder and a statement of age or date of birth. A licensee, agent, or employee may elect to not accept a passport, military identification card, or other identification as proof that the person is not restricted from purchasing alcoholic beverages and may require the person to furnish a valid driver's license or state identification card or otherwise furnish proof that the person is not a resident of this state.
(c) A licensee, or an agent or employee of the licensee, may not be charged for a violation of AS 04.16.047 — 04.16.052 if a signed statement as provided in (a) of this section is secured in good faith, or a valid driver's license or identification card is presented indicating that the owner and possessor of the presented driver's license or identification card is 21 or 16 years of age or over or is not restricted from purchasing alcoholic beverages, as appropriate.