In the United States, professional rodeos are governed and sanctioned by the Professional Rodeo Cowboys Association (PRCA) and Women's Professional Rodeo Association (WPRA), while other associations govern assorted children's, high school, collegiate, and other amateur or semi-professional rodeos. Associations also exist for Native Americans and other minority groups. The traditional season for competitive rodeo runs from spring through fall, while the modern professional rodeo circuit runs longer, and concludes with the PRCA National Finals Rodeo (NFR) in Las Vegas, Nevada, currently held every December.