A May 21, 2009 report by a Canadian government agency task force has recommended stricter regulation on the release of tritium from nuclear reactors just as a slew of tritium leaks have been reported at U.S. reactors. Tritium, (a radioactive form of hydrogen), is clinically proven to cause cancer, birth defects and genetic damage with no known safe threshold dose. The Canadian report recommends the "safe" level be dramatically reduced to 500 picoCuries per liter. Current U.S. standards vary. Under Nuclear Regulatory Commission standards, the "safe" dose is one million picoCuries per liter, compared to the Environmental Protection Agency's 20,000 and the State of California's 400.