Due to federal restrictions contained in the current National Defense Authorization Act, citizens of the People's Republic of China-including the special administrative regions of Hong Kong and Macau-as well as citizens of the Islamic Republic of Iran, the Democratic People's Republic of Korea (North Korea), and the Russian Federation, who are not Lawful Permanent Residents ("green card" holders) are prohibited from accessing facilities that support the mission, functions, and operations of national security laboratories and nuclear weapons production facilities, which includes Los Alamos National Laboratory. Specific physical mobility: Reaching overhead, Reaching horizontally, Reaching down, Applying torque, with hands or arms, Gripping with the hands, Pressing with hands or arms, Pushing with hands or arms, Pulling with hands or arms, Typing or keyboarding, Fine motor control, Use of both hands, Use of both arms, Use of both legs, Use of both feet.