The report, issued last week ahead of a full review of safety practices in the sector, found not all workplace accidents were being reported, possibly because some people viewed them recreational rather than workplace accidents.
But NZ Ski chief executive James Coddington said Queenstown adventure tourism operators had "very structured and regimented protocol" around reporting accidents.
"Most of the Queenstown tourist operators I am aware of have very stringent controls in place to record workplace accidents," he told the Southland Times.
Routeburn Canyoning owner Mike Enright said safety procedures were well-adhered to because Queenstown's economy depended on adventure tourism.
AJ Hackett Bungy chief executive officer Michelle Trapski said it was "interesting" that the Department of Labour took the view that some people saw accidents as recreational rather than workplace-related.
"They obviously have evidence." The adventure tourism industry review, due May 31, was ordered by Prime Minister John Key in October after the death of English tourist Emily Jordan.
Ms Jordan, 21, drowned in Central Otago's Kawarau River in April 2008 after being trapped underwater for 20 minutes while riverboarding.
Last week's preliminary report said the Department of Labour was notified of a total of 448 workplace accidents which resulted in serious harm between July 2004 and June 2009.
There were 19 fatalities during the same period.
