Chapter 31.3 - Online Cannabis Marketplaces

California Business and Professions Code — §§ 22943-22943.6

Sections (4)

Added by Stats. 2025, Ch. 411, Sec. 2. (SB 378) Effective January 1, 2026. Operative July 1, 2026, pursuant to Section 22943.6.

For purposes of this chapter, the following definitions apply:

(a)“Advertisement” means an advertisement about, or an offer of, the sale of cannabis or a cannabis product.
(b)“Business information” means an internet website, mobile application, address, or telephone number through which a seller offers to sell, or a consumer makes a purchase of, cannabis or a cannabis product.
(c)“Cannabis” has the same meaning as that term is defined in Section 26001.
(d)“Cannabis product” has the same meaning as “cannabis products” as defined in Section 26001.
(e)“Clear and conspicuous” means in larger type than the surrounding text, or in contrasting type, font, or color to the surrounding text of the same size, or set off from the surrounding text of the same size by symbols or other marks that call attention to the language. The Attorney General may promulgate regulations further defining clear and conspicuous.
(f)“License” means a license issued by the Department of Cannabis Control pursuant to Division 10 (commencing with Section 26000).
(g)“Online cannabis marketplace” means an internet website, online service, online application, or mobile application, or a portion thereof, including a social media platform, as defined in Section 1798.99.20 of the Civil Code, that does any of the following in California:
(1)Transmits or otherwise communicates between a

third-party seller and consumer an offer for the sale of cannabis or a cannabis product that is accepted by the consumer.

(2)Offers for sale cannabis or a cannabis product.
(3)Connects a third-party

seller of cannabis or cannabis products and a consumer.

(h)“Third-party seller” means a person or entity, independent of an online marketplace, who sells, offers to sell, or contracts with an online marketplace to sell a product in the state by or through an online marketplace.

Added by Stats. 2025, Ch. 411, Sec. 2. (SB 378) Effective January 1, 2026. Operative July 1, 2026, pursuant to Section 22943.6.

(a)An online cannabis marketplace shall address in its terms of service both of the following:
(1)Whether the online cannabis marketplace permits advertisements from, or business information about, unlicensed sellers of cannabis or cannabis products to be viewed by Californians on its marketplace.
(2)Whether the online cannabis marketplace verifies that a seller of cannabis or cannabis products has a valid, unexpired license by consulting the license look-up function on the Department of Cannabis Control’s internet website established pursuant to Section 26012.5 before displaying, storing, or hosting the

seller’s advertisements or business information in a manner that is viewable to Californians.

(b)(1) An online cannabis marketplace shall establish a clear and conspicuous mechanism within its internet-based service that allows any individual, whether or not that individual has a profile on the internet-based service or is a user, to report to the online cannabis marketplace the display, storing, or hosting on the marketplace of advertisements from, or business information about, an unlicensed seller of cannabis or cannabis products.
(2)The mechanism required by this subdivision shall meet all of the following criteria:
(A)The mechanism shall allow, but not require, an individual to do both of the

following:

(i)Upload a screenshot of the content that offers evidence of advertisements from, or business information about, the unlicensed seller on the marketplace.

(ii) Provide the marketplace with basic identifying information, such as an account identifier or URL, sufficient to permit marketplace to locate the reported material.

(B) The mechanism shall include, but not be limited to, a method for the marketplace to contact a reporting individual in writing, including a telephone number for purposes of sending text messages, an email address, or another reasonable electronic method of communication.

(C) The mechanism shall provide, within 36 hours of

receipt of a report, a written confirmation to the reporting individual that the marketplace has received that individual’s report.

(D) (i) The mechanism shall provide periodic written updates to the reporting individual as to the status of the marketplace’s handling of the reported material using the method of communication pursuant to subparagraph (B).

(ii) The first written update required by clause (i) shall be provided as soon as reasonably feasible but no later than 14 days after the date on which the written confirmation required under subparagraph (C) is provided. Subsequent written updates shall be provided as soon as reasonably feasible but no later than 14 days after the most recent written update provided pursuant to this clause, until the final

written determination required by subparagraph (F).

(E) Each report shall receive a review by a natural person.

(F) (i) The mechanism shall issue a final written determination to the reporting individual within 30 days of receiving the report. The final written determination shall state one of the following:

(I) The report has provided evidence that an advertisement from, or business information about, an unlicensed seller of cannabis or cannabis products was displayed, stored, or hosted on the marketplace and the seller’s advertisements and business information have been blocked from being viewable on the marketplace.

(II) The report has

provided evidence that an advertisement from, or business information about, an unlicensed seller of cannabis or cannabis products was or is displayed, stored, or hosted on the marketplace and the seller’s advertisements and business information will not be blocked from being viewable on the marketplace. The final written determination issued pursuant to this subclause shall also state that the marketplace acknowledges that it is aware that the seller is unlicensed and whether the marketplace has referred the report to a law enforcement agency. If the marketplace has referred the report to a law enforcement agency, the final written determination shall provide a true and correct copy of the report that the marketplace made to the law enforcement agency.

(III) The report lacks evidence that the identified seller of cannabis or cannabis

products who was or is displayed, stored, or hosted on the marketplace is unlicensed and the seller’s advertisements and business information will not be blocked from being viewable on the marketplace.

(IV) The report lacks evidence that the identified seller of cannabis or cannabis products whose advertisement or business information was or is displayed, stored, or hosted on the marketplace is unlicensed and the seller’s advertisements and business information will be blocked from being viewable on the marketplace for reasons unrelated to the seller’s licensing status.

(V) The report lacks evidence that an advertisement or business information of a seller of cannabis or cannabis products was displayed, stored, or hosted on the marketplace.

(ii) If the marketplace cannot comply with clause (i) within 30 days due to circumstances beyond the reasonable control of the marketplace, the marketplace shall comply with clause (i) no later than 60 days after the date on which the report was received. If this clause applies, the marketplace shall promptly provide written notice of the delay, no later than 48 hours from the time the marketplace knew the delay was likely to occur, to the reporting individual.

(c)This section shall not be interpreted to prohibit any individual from reporting activity by an unlicensed seller of cannabis or cannabis products without the use of the mechanism established in subdivision (b).
(d)(1) Any online cannabis marketplace that violates a requirement of this

section shall be liable for a civil penalty of not more than ten thousand dollars ($10,000) for each violation and for compensatory damages, punitive damages, and any civil remedies, penalties, or sanctions for harms caused by the marketplace’s failure to comply with this chapter, which damages shall be adjudicated and awarded apart from any harms attributable to the existence of the reported content alone.

(2)Any person may bring an action to enforce this section. In addition to other equitable relief, the court may order injunctive relief to obtain compliance with this section and shall award reasonable attorney’s fees and costs to the prevailing plaintiff.
(3)A person shall not bring an action to enforce

paragraph (2) of subdivision (b) if the marketplace, upon receipt of the advertisement or business information through the mechanism, removes the reported advertisement or business information within 48 hours.

(4)It is not a violation of paragraph (2) of subdivision (b) if the marketplace, upon receipt of the report, removes the reported advertisement or business information within 48 hours.
(5)Each day an online cannabis marketplace is in violation of a requirement of this section constitutes a separate violation.
(e)The duties and obligations imposed by this section are cumulative with any other duties or obligations imposed under other law and shall not be construed to relieve any party from any duties or obligations imposed under other law.

Added by Stats. 2025, Ch. 411, Sec. 2. (SB 378) Effective January 1, 2026. Operative July 1, 2026, pursuant to Section 22943.6.

(a)If an online cannabis marketplace does not verify that a seller of cannabis or cannabis products is licensed as described in paragraph (2) of subdivision (a) of Section 22943.2, the online cannabis marketplace shall, immediately after a consumer has accessed the marketplace, interpose a clear and conspicuous graphic that a consumer must acknowledge and click through before viewing or engaging with the marketplace. The graphic shall warn the consumer that the marketplace may be displaying, storing, or hosting unlicensed sellers of cannabis or cannabis products.
(b)Any person who identifies an online cannabis marketplace that displays, stores, or hosts an

advertisement from, or business information about, an unlicensed seller of cannabis or cannabis products in violation of subdivision (a) may initiate an action to

enforce subdivision (a). A person who prevails in such an action shall be entitled to both of the following:

(1)Reasonable attorneys’ fees and costs.
(2)A civil penalty of up to two hundred fifty thousand dollars ($250,000).
(c)An online cannabis marketplace that violates an injunction requiring compliance with this section shall be prohibited from operating in California until a receiver appointed by the court issuing the injunction affirms to the court that the marketplace is in compliance. In any action to enforce an injunction requiring compliance with this section, the party obtaining enforcement shall be

entitled to an award of its reasonable attorneys’ fees and costs and a civil penalty of up to

five hundred thousand dollars ($500,000).

(d)This section shall not be construed as prohibiting a public prosecutor, as described in Section 17204, from bringing an appropriate action to enforce this section.

Added by Stats. 2025, Ch. 411, Sec. 2. (SB 378) Effective January 1, 2026.

This chapter shall become operative on July 1, 2026.