Four key changes to the Fair Work Act have cleared the Senate.
One stops police, paramedics and firefighters from having to prove they got PTSD from their job before accessing compensation and puts the onus on insurers to prove otherwise in order to block the payments.
The other amendments stop employers from discriminating against workers facing domestic violence, protect redundancy payments and bring silica dust in line with asbestos rules.
Independent senators David Pocock and Jacqui Lambie moved the amendments, which were plucked from broader changes to industrial relations put forward by the Albanese government.
Senators David Pocock and Jacqui Lambie pushed for the amendments.
Senator Lambie urged the government to quickly deal with the non-contentious elements in the House of Representatives.
"This is not contentious. This is a really lovely thing to do before Christmas time. Just get it done. We don't need to be arguing about domestic violence," she told ABC Radio on Friday.
"I suggest Labor deal with it in the lower house next week and get these through so we can get on with the rest of the bill."
The Tasmanian senator said the split in the workplace bill in the Senate was designed to bring forward the non-contentious elements as soon as possible.
She said while a Senate inquiry into the bill was still ongoing, issues contained in the carved out section were not being brought up during hearings.
Senator Lambie said she was still going through other elements of the broader bill to determine a final position on the contentious changes.
"I'm doing everything I can ... to put everything under the microscope and make sure we get this as close to perfect as possible so there are no unintended consequences," she said.
"I am working and my people are working at full capacity and talking to every bit of stakeholders left and right and the middle to try and understand this bill."
Labor refused to split its industrial bill, but the opposition and cross bench joined forces to push the four proposals through the upper house.
They'll need to be ticked off by the government-controlled lower house before becoming law.
Labor wants to wait for a parliamentary inquiry to report back on its legislation before making any changes.
The committee is not due to hand down its final report until February.
Chamber of Commerce CEO Andrew McKellar (centre) says wider reforms will destroy jobs.
Business groups including the Australian Chamber of Commerce and Industry oppose the wider reforms.Â
Chamber CEO Andrew McKellar said small and medium businesses wouldn't hire casual employees if it meant they would need to offer them permanent positions in the future.
"That will end up destroying jobs," he told AAP.
He also rejected a "false narrative" workers were suffering while big corporations were making record profits.
Australian Council of Trade Unions president Michele O'Neil said a whole suite of reforms were urgently needed to boost wages.
"The people who are suffering are working people, not big business that are campaigning against this," she said.