; (2) the term business-class accommodations means a premium class of accommodation offered by an airline that— (A) is more expensive, and offers more amenities, than coach-class accommodations; (B) is less expensive, and offers fewer amenities, than first-class accommodations; and (C) is occasionally described by the airline using terms including business , business elite , business first , world business , connoisseur , and envoy ; (3) the term coach-class accommodations — (A) means the basic class of accommodation offered to a traveler on an airline and which is normally the lowest fare offered by the airline, without regard to the terminology used to describe the accommodations; and (B) is occasionally described by an airline using terms including— (i) tourist class or economy-class ; and (ii) single class if the airline offers 1 class of accommodations to all travelers; (4) the term covered employee means— (A) an employee traveling on official business; (B) an individual who is— (i) interviewing for a position as an employee; and (ii) performing pre-employment interview travel; (C) an employee who is required to interrupt the official business travel of the employee to perform emergency travel as a result of— (i) an incapacitating illness or injury; or (ii) a personal emergency situation; or (D) an employee who— (i) is employed in a law enforcement or investigative capacity; and (ii) along with the family members of the employee, is required to relocate temporarily to safeguard the life of the employee, and any family members of the employee, as applicable, because of a threat resulting from the assigned duties of the employee; (5) the term employee means an individual employed in or under an agency, including an individual employed intermittently in the Government service as an expert or consultant and paid on a daily when-actually-employed basis and an individual serving without pay or at $1 a year