Despite fresh pleas from the medical community and two new deaths over the weekend, Alberta's transportation minister says legislation covering ATV safety isn't needed.

nine-year-old boy from southern Alberta and a four-year-old from B.C. died in separate crashes on the weekend.

Minister Ric McIver said he's happy to let parents make their own rules.

"Government tries to make rules that make things generally safe, but for minors parents are the very best safety devices that they are furnished with," said McIver.

"The very best tools to keep children safe in Alberta, or any place, are mom and dad."

Dr. Louis Francescutti, the president of the Royal College of Physicians and Surgeons of Canada, said it's time the government forced changes.

Critics, including Liberal health critic David Swann, are again calling for tougher laws covering helmet and seatbelt use following the deaths.

"Their obviously in this government not listening to the experts like Dr. Francescutti and the Canadian Pediatric Society and it’s obvious they’re not listening to Albertans, because in their own survey, in 2008, 80 per cent plus said we want mandatory helmets for ATV users," said Swann.