(a) In AS 36.90.210 - 36.90.290, (1) a payment is considered to be made when mailed or personally delivered to the party being paid; (2) a payment is considered to be received when it is endorsed for payment, if it is a check; (3) an invoice is considered to be received when it is date-stamped or otherwise marked as delivered; if the invoice is not date-stamped or otherwise marked as delivered, the date of the invoice is considered to be the date when the invoice is received. (b) A political subdivision that receives a state grant for a public construction or public works project may use money from the state grant to pay the interest under AS 36.90.200 - 36.90.290.
Alaska Legal Code