Health workers who responded to the Port Arthur massacre are calling on the Tasmanian Government to abandon its proposal to water down gun laws.

The Liberals' policy to weaken Tasmania's gun laws was revealed in the media on the eve of the March state election.

The Government promised changes to gun laws that would allow greater access to Category C firearms — such as self-loading rifles, pump-action shotguns — for farm workers and sporting shooters.

A group of health professionals are appealing to Premier Will Hodgman to drop the proposal and will be making a submission to the Legislative Council inquiry into the laws.

The medical professionals and unions are urging the Government to maintain current gun laws. ( ABC News: Lucy MacDonald )

Social worker and HACSU delegate Pru Peschar said the proposed laws were concerning.

"Twenty-two years ago I was called out on the night of the Port Arthur massacre and I saw first hand the devastation that was wreaked with one person with one gun," she said.

"We never want that again. We must resist any attempt to water down or to change our laws that occurred as a result of the Port Arthur massacre."

She said the current laws needed to be maintained.

"The community is much safer, our community has benefited for the past 22 years because of the adoption to these laws," she said.

"Whose interests does it serve to change these laws? In my opinion, nobody's interests are served."

'It's beyond belief'

Bryan Walpole was on duty as a doctor at the Royal Hobart Hospital's Emergency Department on the day of the Port Arthur massacre.

He worked with then Prime Minister John Howard and Premier Tony Rundle to toughen gun laws, and they reached agreement with state premiers for national reform.

Brian Walpole was at the hospital's frontline when the Port Arthur massacre happened. ( ABC News: Lucy MacDonald )

"Here you've got a uniform set of rules, right across the country that work, and they've cut the gun death rate enormously," he said.

"You know, it used to be equal to the road toll and now it's down to about a third of the road toll and firearms suicides are way down.

"I mean, why would you tamper with this? It's beyond belief."

He said he was concerned about how the proposed changes could affect the number of rural suicides.

"It's multi-factorial, but guns are one of the factors," he said.

"If guns aren't safely stored, licensed and registered, then more people will die. It's as simple as that."

RACGP president Bastian Seidel said he was flabbergasted by the Government's proposal.

Dr Bastian Seidel is concerned about the risk of more firearm injuries. ( ABC News: Gregor Salmon )

"We would like to see gun violence eradicated, the same as measles, the same as meningococcal disease," he said.

"It shouldn't be encouraged by watering down existing gun laws."

Dr Seidel said he was also concerned about the effect the changes would have on Tasmania's health system.

"Our health system here in Tasmania can't cope on a good day. What's going to happen if we see more gun violence," he said.

"If you have to treat injuries and get ready and prepare for massacres again, this doesn't make any sense in 2018."

National Firearms Agreement will be upheld: Premier

Mr Hodgman said the Government was standing by a parliamentary inquiry into the proposed changes.

"This is another group who we welcome having their say about it," he said.

"We won't do anything to compromise the National Firearms Agreement.

"We will not do anything to water down Tasmania's gun laws."