California Code, Corporations Code - CORP § 12253.5

“Worker cooperative” or “employment cooperative” means a corporation formed under this part that includes a class of worker-members who are natural persons whose patronage consists of labor contributed to or other work performed for the corporation.  Election to be organized as a worker cooperative or an employment cooperative does not create a presumption that workers are employees of the corporation for any purposes.  At least 51 percent of the workers shall be worker-members or candidates.