The Victorian Parliament's upper house on Thursday passed legislation to crack down on workplaces storing dangerous goods.

The Liberal Democrats supported the legislation, but Mr Quilty proposed to change a part he claimed "gives the government the power to search your car and parts of your house without a warrant".

"It is technical industrial safety legislation, why would it give the government those powers? Because it is easy to do that," he said.

"Because it would take slightly more effort to apply checks and balances.

"Because governments like to expand their powers."

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WorkSafe inspectors can search homes and cars in certain circumstances looking for dangerous goods, which Mr Quilty claimed could be "a bottle of barbecue gas or a few cans of Aerogard".

"This act should not give people the power to ferret through your shed or the boot of your car on a whim," he said.

"If you own a barbecue, or think that you might ever own a barbecue, you should support these amendments."

The amendments were voted down 36-3.

Labor MP Gayle Tierney said WorkSafe did need a warrant and Mr Quilty's proposed changes "fundamentally misunderstands that the powers of inspectors are not unqualified or unbounded".

"An inspector must make all reasonable steps to notify the occupier or apparent occupier of the place of entry and to produce his or her identity card for inspection," she said. "In relation to the entering of residential properties, inspectors cannot do so without the consent of the occupier unless they have a warrant."

Meanwhile MP Tania Maxwell has asked the government what measures and improvements are being put in place to urgently address what has been called a devastating situation in the dairy industry across Northern Victoria.

"Dairy is the largest agricultural industry in this state, and Victorian farmers have contributed to more than 65 per cent of annual national milk production and exports," she said.

"The collective impact of drought and water prices are crippling our dairy farmers and urgent action is needed."

An answer from the minister is required within 14 days.