Bonjour,
Extrait du site de l'US Customs :
www.foreignborn.com/...nonres.htm#alcoholic
Alcoholic BeveragesNonresidents who are at least 21 years old may bring in, free of duty and Internal Revenue Tax, up to one liter of alcoholic beverage--beer, wine, liquor--for personal use. Quantities above the one-liter limitation are subject to duty and internal revenue tax.
In addition to federal laws, you must also meet
state alcoholic beverage laws, which may be more restrictive than federal laws. This means that if the state in which you arrive permits less liquor, wine, or beer than you have legally brought into the United
States, that state's laws apply to your importation of alcoholic beverages for personal use.
Je crois donc que tu peux oublier toute idée de "caisses" !!
Pour te "rassurer" : on trouve dans les boutiques adhoc là-bas un assez bon champagne, à un prix inférieur à celui importé, appelé "Chandon".... puisque fait en
Californie par la société Moet & Chandon bien connue !!
A la tienne !!