SACRAMENTO, Calif. --Minor children must already wear helmets on a bicycle, but they may also have to wear one on the slopes. A new bill has landed on Governor Brown's desk that would require skiers and snowboarders under the age of 18 to strap on a helmet when they hit the snow. An industry group says half of the 38 skiers who died on the slopes in the United States last year were not wearing helmets. Under the new law, parents could be fined up to $25 if their kids are found skiing or snowboarding without a helmet. "You have thousands and thousands of accidents where there are brain injuries of some sort," said State Senator Leland Yee. "Nearly half of those brain injuries could have been prevented if the youngsters were wearing a helmet." Opponents said the measure is an example of "nanny government." Governor Brown has 12 days to sign or veto the bill.