(a) Notwithstanding any other provision of this division, a winegrower who manufactures, produces, bottles, processes, imports, or sells wine only, or any officer, director, or agent of that person, may hold the ownership of any interest in any on-sale license, if both of the following conditions exist:

1. (1) Neither that person, nor any officer, director, or agent of that person, sells or furnishes to the holder of the license any wine, or permits the sale pursuant to that license of any wine, manufactured, produced, wholesaled, bottled, processed, imported, or sold by that person or that person’s principal for as long as that ownership continues.
2. (2) Neither that person, nor any officer, director, or agent of that person, enters into any collusive scheme, whereby he or she unfairly sells or promotes, in his or her on-sale businesses, the wine of another winegrower who manufactures, produces, bottles, processes, imports, or sells wine only, in return for his or her wine being unfairly sold or promoted in the on-sale businesses of that winegrower.

(b) Notwithstanding any other provision of this division, any licensed winegrower or any winegrower who has a wholesale license, or any officer, director, or agent of that person, may hold, directly or indirectly, the ownership of any interest in an on-sale license, provided that each of the following conditions is met:

1. (1) The on-sale licensed premises are licensed as a bona fide public eating place as defined in Section 23038, or as a bona fide bed and breakfast inn as defined in Section 24045.11.

2. (2) The on-sale licensed premises purchases all alcoholic beverages sold and served at the on-sale licensed premises only from California wholesale licensees, other than the licensed winegrower who has a wholesale license and an interest in an on-sale license, unless one of the following conditions is met:

   1. (A) The wine purchased is produced or bottled by, or produced and packaged for, the same licensed winegrower that holds an interest in the on-sale license.
   2. (B) The wine is produced or bottled by, and is purchased from, a licensed winegrower who sells no more than 125,000 gallons of wine per year for distribution in this state under all brands or trade names owned by that winegrower.
   3. (C) The wine is purchased by an on-sale licensee in whose on-sale license a licensed winegrower holds an interest, provided that the winegrower sells no more than 125,000 gallons of wine per year for distribution in this state under all brands or trade names owned by that winegrower.
3. (3) The licensed winegrower and any officer, director, or agent of that person, whether individually or in the aggregate, do not sell and serve the wine products produced or bottled under any brand or trade name owned by that winegrower through more than two on-sale licensed premises in which any of them holds an ownership interest.
4. (4) The number of wine items by brand offered for sale by the on-sale licensed premises that are produced, bottled, processed, imported, or sold by the licensed winegrower or by any person holding any interest in the winegrower does not exceed 15 percent of the total wine items by brand listed and offered for sale in the licensed bona fide public eating place selling and serving that wine. This paragraph does not apply to a bona fide bed and breakfast inn.