For purposes of this chapter, with respect to wines manufactured within this state, possession occurs when the product is first identifiable as wine, in accordance with this title and such regulations as may be promulgated by the commissioner pursuant to this title. With respect to wines shipped from outside this state to a destination within this state, possession in the consignee occurs when the wine first physically enters the state or when the risk of loss from destruction or casualty to the wine is shifted from the consignor to the consignee located in this state, in accordance with the contract of the parties and the substantive commercial law of this state, whichever event occurs first.