The top 5 things businesses need to know about California's equal pay law

Women who work in California will have the strongest equal pay protection in the nation after Jan. 1. They will be allowed to sue under pay discrimination laws if they can prove a man at the same job in the same business makes more. The new law also eliminates a "same establishment" requirement for workplaces, which didn't necessarily allow women to compare their salaries to those of men working at the same business. It outlaws retaliation for inquiring about other employees' wages or against employees…