Released under right to information, the data shows just one formal written breach notice was handed to an operator licenced to work in parks and reserves in the last financial year.

The unidentified Lake St Clair National Park operator - one of 275 licenced by the Parks and Wildlife Service across the state - was later able to produce documents providing proof the conditions were being met.

The disclosure noted the "majority" of potential breaches - for matters relating to valid parks passes, client-to-guide ratios, vehicle and industry accreditation - are "routinely dealt with in the field by a verbal reminder" with the operator.

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"This is in line with the department's compliance policy which always seeks to educate as the first response and step in compliance action."

However no further data around these incidents was provided. The department policy also dictates that "all information" relating to compliance and enforcement is recorded.

Responding to questions, a government spokesperson assured information around the verbal warnings was in fact kept. "Incidences of non-compliance are collated centrally and recorded on the operators file for future reference," they said.

Tasmanian Greens leader and parks spokesperson Cassy O'Connor said the release showed "what little regard" the government had for transparency.

"Overwhelmingly tourism operators in protected areas are acting responsibly but if companies profiting from their use of public protected areas are doing the wrong thing, it's in the public interest to have greater transparency," Ms O'Connor said.

She said the government put "private profit over protection" in parks and reserves "every time".

"We believe most Tasmanians are proud of the wild places in their shared backyard and want to see them looked after."

But Tasmanian Tourism Industry Council chief executive Luke Martin said the lack of formal breaches supported "what we know" about the growing sector.

"The vast majority of commercial tourism operators working in our protected areas are committed to the high standards and try to do the right thing," Mr Martin said. He added most were small businesses "who have most to lose" with any action.

"As a general rule, we would support any reasonable measure that strengthened the compliance regime."

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