The mission of the California Labor Commissioner's Office is to ensure a just day's pay in every workplace in the State and to promote economic justice. California does not require employers to use E-Verify.California actually limits the use of E-Verify in several ways. The Department enforces the Council's policies that stimulate the fair and equitable involvement of Oakland Businesses, Workers, and Residents. Dedicated Oakland Employer Defense Firm Fights Wage and Hour Claims. Determined Bay Area attorneys help resolve overtime and paycheck disputes. In California, it's a criminal offense for employers to not provide workers' compensation for employees during a workrelated injury or illness. All Oakland based businesses should obtain a Zoning Clearance prior to applying for a Business Tax Certificate. Applicants without a Social Security Number can provide an Individual Tax Identification Number (ITIN) when seeking license. You must obtain a business license from Alameda County only if you are conducting any type of business, including leasing residential and commercial property.