Colorado will usher in a new set of laws on July 1 that touch everything from ammunition sales to insurance transparency and wildlife trafficking enforcement Here is a look at some of the state’s new laws: Sponsored by Majority Leader Monica Duran, D-Wheat Ridge, and Rep. Lindsay Gilchrist, D-Denver, and Sens. Judy Amabile, D-Boulder, and Cathy Kipp, D-Fort Collins, House Bill 25-1133 raises the minimum age to purchase ammunition from 18 to 21 years old.