Cal. Bus. & Prof. Code § 23355.2

(a) For purposes of this section, “controlled access alcoholic beverage cabinet” means a closed container, either refrigerated, in whole or in part, or nonrefrigerated, and access to the interior of which is (1) restricted by means of a locking device which requires the use of a key, magnetic card, or similar device, or (2) controlled at all times by the licensee.
(b) Notwithstanding any other provision of this division, a hotel or motel having an on-sale license may sell alcoholic beverages to its registered guests by means of a controlled access alcoholic beverage cabinet located in the guestrooms of those registered guests, provided that each of the following conditions is met:
1. (1) Access to a controlled access alcoholic beverage cabinet in a particular guestroom is provided, whether by furnishing a key, magnetic card, or similar device, or otherwise, only to the adult registered guest, if any, registered to stay in the guestroom.
2. (2) Prior to providing a key, magnetic card, or other similar device required to attain access to the controlled access alcoholic beverage cabinet in a particular guestroom to the registered guest thereof, or prior to otherwise providing access thereto to the registered guest, the licensee shall verify, in accordance with Article 3 (commencing with Section 25657), of Chapter 16 of this division, that each registered guest to whom a key, magnetic card, or similar device is provided, or to whom access is otherwise provided, is not a minor.
3. (3) All employees handling the alcoholic beverages to be placed in the controlled access alcoholic beverage cabinet in any guestroom, including, but not limited to, any employee who inventories or restocks and replenishes the alcoholic beverages in the controlled access alcoholic beverage cabinet, shall be at least 21 years of age.
4. (4) There is no replenishing or restocking of the alcoholic beverages in any controlled access alcoholic beverage cabinet between the hours of 2 a.m. and 6 a.m. of the same day.
(c) Notwithstanding any other provision of this division, a hotel or motel having an on-sale general license or an on-sale general license for restricted service lodging establishments may, upon issuance of a permit from the department, sell from its controlled access alcoholic beverage cabinets distilled spirits in containers of 50 milliliters or less, or in containers of comparable size.
(d) Notwithstanding any other provision of this division, a hotel or motel having an on-sale general license or an on-sale general license for restricted service lodging establishments and an off-sale general license may sell from its controlled access alcoholic beverage cabinets distilled spirits in containers of 50 milliliters or less, or in containers of comparable size, without having to obtain the permit specified in subdivision (c).
(e) A controlled access alcoholic beverage cabinet may be part of another cabinet or similar device, whether refrigerated, in whole or in part, or nonrefrigerated, from which nonalcoholic beverages or food may be purchased by the guests in hotel or motel guestrooms. However, in that event, the portion of the cabinet or similar device in which alcoholic beverages are stored shall be a controlled access alcoholic beverage cabinet, as defined in this section.
(f) For purposes of this section, “hotel” or “motel” shall mean an establishment which is licensed to sell alcoholic beverages and which contains guestroom accommodations with respect to which the predominant relationship existing between the occupants thereof and the owner or operator of the establishment is that of innkeeper and guest. For purposes of this subdivision, the existence of other legal relationships as between some occupants and the owner or operator thereof shall be immaterial.