On July 13, The Nuclear Regulatory Commission released a 90-page interim task force report recommending a comprehensive review of safety regulations for the U.S. nuclear industry in the wake of Japan's nuclear disaster, as well as several new and enhanced rules and initiatives to ensure operational safety for the nation's 104 commercial power plants. The proposed improvements address coping with the loss of power due to earthquakes, fires, and floods that can cause station blackouts; the industry practice of storing more and more spent nuclear fuel in cooling pools near reactor vessels; containment of hydrogen gas to prevent explosions and radiation leaks, and emergency systems.