Cal. Government Code § 87103.5

(a) Notwithstanding subdivision (c) of Section 87103, a retail customer of a business entity engaged in retail sales of goods or services to the public generally is not a source of income to an official who owns a 10-percent or greater interest in the entity if the retail customers of the business entity constitute a significant segment of the public generally, and the amount of income received by the business entity from the customer is not distinguishable from the amount of income received from its other retail customers. (b) Notwithstanding subdivision (c) of Section 87103, in a jurisdiction with a population of 10,000 or less which is located in a county with 350 or fewer retail businesses, a retail customer of a business entity engaged in retail sales of goods or services to the public generally is not a source of income to an official of that jurisdiction who owns a 10-percent or greater interest in the entity, if the retail customers of the business entity constitute a significant segment of the public generally, and the amount of income received by the business entity from the customer does not exceed one percent of the gross sales revenues that the business entity earned during the 12 months prior to the time the decision is made. (c) For the purposes of subdivision (b): (1) Population in a jurisdiction shall be established by the United States Census. (2) The number of retail businesses in a county shall be established by the previous quarter’s Covered Employment and Wages Report (ES-202) of the Labor Market Information Division of the California Employment Development Department.