The Senate killed a bill to prohibit employers from hiring permanent workers to replace striking union members.

In another measure, Congress last year prohibited most employers from setting mandatory retirement ages.

Federal law prohibits employers from firing anyone for merely backing a union.

The state's labor code prohibits employers from discriminating on the basis of political activities.

California law prohibits employers from firing employees on the basis of political activities.

The bill also prohibits employers from using or requiring genetic tests in the workplace.

But Congress also prohibits employers from taking adverse employment actions "because of" race.

The 1967 Federal law prohibits employers from discriminating against workers over 40 years old.

She noted that the law prohibits employers from taking specific actions against an individual "because of such individual's age."

The bill would have lifted 44-year-old restrictions that prohibit employers from hiring workers to work in their homes.