Portable oxygen concentrators. Generally, the Federal Aviation Administration (FAA) prohibits the use of personal oxygen units during flights because they contain compressed gas or liquid oxygen that is defined as hazardous material. However, the FAA has issued guidelines permitting the onboard use of certain portable oxygen concentrators (POCs). POCs approved by the FAA may be carried and used on board United flights worldwide at no charge, in accordance with FAA regulations.
Ronald Reagan (1911-2004), a former actor and California governor, served as the 40th U.S. president from 1981 to 1989. Raised in small-town Illinois, he became a Hollywood actor in his 20s and later served as the Republican governor of California from 1967 to 1975.
Reagan won 489 electoral votes to 49 for President Jimmy Carter. On January 20, 1981, Reagan took office. Only 69 days later he was shot by a would-be assassin, but quickly recovered and returned to duty. His grace and wit during the dangerous incident caused his popularity to soar.s president of the Screen Actors Guild, Reagan became embroiled in disputes over the issue of Communism in the film industry; his political views shifted from liberal to conservative. He toured the country as a television host, becoming a spokesman for conservatism.