California Code, Business and Professions Code - BPC § 24045.11

(a) The department may issue a special on-sale wine license to an establishment licensed to do business as a bed and breakfast inn.

(b) For purposes of this section, “bed and breakfast inn” means an establishment of 20 guestrooms or less, which provides overnight transient occupancy accommodations, which serves food only to its registered guests, which serves only a breakfast or similar early morning meal, and with respect to which the price of the food is included in the price of the overnight transient occupancy accommodation.“Bed and breakfast inn” refers to an establishment as to which the predominant relationship between the occupants thereof and the owner or operator of the establishment is that of innkeeper and guest, and the existence of some other legal relationships as between some occupants and the owner or operator is immaterial.

(c) An establishment holding a license under this section is authorized to serve wine purchased from a licensed winegrower or wine wholesaler only to registered guests of the establishment. Wine shall not be given away to guests but the price of the wine shall be included in the price of the overnight transient occupancy accommodation. Guests shall not be permitted to remove wine served in the establishment from the grounds.