***Please note (stuff in italics, are my comments) some of the code has been edited out (...) You may view the original on the California State Website Vehicle Code all codes This is NOT legal advise, ask your own attorney.§ 23229. Possession of alcoholic beverage in for-hire vehicles; exceptions
(a) Except as provided in §Section §23229.1, (under 21)Sections §23221 (Drinking in a Motor Vehicle) and §23223 (Open Container) do not apply to passengers in any bus, taxicab, or limousine for hire licensed to transport passengers pursuant to the Public Utilities Code or proper local authority, or the living quarters of a housecar or camper.
(b) Except as provided in Section §23229.1, (under 21) Section §23225(Open Container) does not apply to the driver or owner of a bus, taxicab, or limousine for hire licensed to transport passengers pursuant to the Public Utilities Code or proper local authority.
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§ 23225. Storage of opened container
(a)(1) It is unlawful for the registered owner of any motor vehicle to keep in a motor vehicle, when the vehicle is upon any highway or on lands, as described in subdivision (b) of Section 23220, any bottle, can, or other receptacle containing any alcoholic beverage that has been opened, or a seal broken, or the contents of which have been partially removed, unless the container is kept in the trunk of the vehicle.
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(c) This section shall not apply to the living quarters of a housecar or camper.
§23223. Possession of opened container in a motor vehicle
(a) No driver or passenger shall have in his or her possession, while in a motor vehicle upon a highway or on lands, as described in subdivision (b) of Section 23220, any bottle, can, or other receptacle, containing any alcoholic beverage that has been opened, or a seal broken, or the contents of which have been partially removed.
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§23229.1. Application of prohibition against possession or storage of opened container to charter-party carrier of passengers while transporting passenger under 21; forwarding record of conviction to public utilities commission
(a) Subject to subdivision (b), Sections §23223 and §23225 do apply to any charter-party carrier of passengers, as defined in Section §5360 of the Public Utilities Code, operating a limousine for hire when the driver of the vehicle transports any passenger under the age of 21.
(b) For purposes of subdivision (a), it is not a violation of Section §23225 for any charter-party carrier of passengers operating a limousine for hire which is licensed pursuant to the Public Utilities Code to keep any bottle, can, or other receptacle containing any alcoholic beverage in a locked utility compartment within the area occupied by the driver and passengers.
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For the purposes of this subdivision, a forfeiture of bail is equivalent to a conviction.
§23221. Drinking in motor vehicle upon highway
(a) No driver shall drink any alcoholic beverage while in a motor vehicle upon a highway.
(b) No passenger shall drink any alcoholic beverage while in a motor vehicle upon a highway.
§ 5384.5. Conviction of violation of prohibition against storage of opened container for alcoholic beverage by driver or officer, agent or employee of charter-party carrier of passengers
***This one is in Business & Professions Code - a separate violation for you.
If the driver of any limousine for hire operating under a valid certificate or permit, or any officer, director, agent, or employee of a charter-party carrier of passengers operating limousines for hire under such a certificate or permit, is convicted of a violation of Section §23225 of the Vehicle Code, (open container) the commission, after a hearing, shall do the following:
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CA Vehicle Code
