A retailer, or retailer’s employee or agent, prior to or at the time of any sale at retail of a keg, shall:
(a) Affix or cause to be affixed to the keg a keg identification tag, in accordance with the provisions of § 3-904;
(b) Require the purchaser to exhibit proper proof of identification. If the purchaser fails to provide such proof of identification, the retailer shall refuse to sell the keg to such person;
(c) Require the purchaser to sign a declaration and receipt for the keg in the form provided for in § 3-904;
(d) Record on the declaration the keg identification tag number, the date of sale, the purchaser’s name and address, and the type, number and expiration date of the purchaser’s identification;
(e) Inform the purchaser, that any deposit paid by the purchaser for the keg, if required, shall be forfeited if the keg is returned without the original keg identification tag intact and readable;
(f) Require each purchaser of any such keg to acknowledge as part of the declaration that persons under 21 are not of legal age for consumption of beer or cereal malt beverage and that the declaration is subject to inspection by law enforcement personnel; and
(g) Provide a copy of the declaration and receipt to the purchaser.