United States Postal Service Shipping Equity Act - Authorizes the mailing of wine or malt beverages by licensed wineries or breweries in accordance with the law of the state, territory, or district of the United States where the addressee or duly authorized agent takes delivery.

Directs the U.S. Postal Service (USPS) to prescribe regulations: (1) requiring such mailing to be through a means established by the USPS to ensure direct delivery to the addressee or a duly authorized agent at a postal facility; (2) requiring the addressee and any agent to be at least 21 years of age and to present a valid, government-issued photo identification at the time of delivery; (3) prohibiting such wine or malt beverages from being for resale or any other commercial purpose; and (4) requiring such wineries or breweries to certify that the mailing is not in violation of applicable laws or USPS regulations and to provide other information as directed by the USPS, including with respect to the prepayment of state alcohol beverage taxes.

Revises the federal criminal code to allow for the mailing of wine and malt beverages pursuant to this Act.