FILE - A Ukrainian skier heads out on the course to test skis for wax and snow conditions prior to the relay competition at the World Cup Biathlon, Saturday, Feb. 13, 2016, in Presque Isle, Maine. The on-again, off-again ban on high-end waxes that help cross country skis glide smoothly over the snow, but are toxic to your health and the environment, is on in some places, but not the cross country ski World Cup circuit or 2022 Beijing Olympics because the tester isn't ready. (AP Photo/Robert F. Bukaty, File)