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. Technical Expertise: Entry-level knowledge of maintenance documents, to include, but not limited to entry-level knowledge of government and industry regulations affecting maintenance and site services, entry-level knowledge in maintenance, assessments, inspection and testing including facility real property and programmatic equipment.