Federally regulated workplaces will soon be banned from bringing in replacement workers during a legal strike, after the Senate passed a government bill Monday that is now set to become law.

The bill — known as “anti-scab” legislation — also sets a fine of up to $100,000 a day for employers who have replaced striking workers.

The legislation was a key element of the Liberals’ political pact with the New Democrats, and passed through the House of Commons with unanimous support.