Before you hire any employees you'll need to register with the US Internal Revenue Service for an Employer Identification Number (EIN). This guide to California labor laws for small business owners will help you navigate the confusing maze of regulations and stay in compliance.An overview of California's laws and HR issues. Get help in creating effective human resources policies and resolve human resources issues. The new Minimum Wage Rate - effective July 1st of each year - is based on the Consumer Price Index (CPI) for Urban Wage Earners and Clerical Workers (CPI-W) Employers in California should review whether they are subject to any local banthebox laws, including San Francisco and Los Angeles. It's essential to have a basic understanding of employment laws in Los Angeles to ensure fair treatment and compliance with the law. Contact our Los Angeles labor law and business attorney today. Post in a Conspicuous Place at any Workplace or Job Site. Violators Shall be Subject to Penalties.