301-10.124—What are coach-class Seating Upgrade Programs?
Sometimes these programs are called “Coach Elite,” “Coach Plus,” “Preferred Coach” or some other identifier. Under these airline programs, a passenger may obtain for a fee a more desirable seat choice within the coach-class cabin. These airline upgrade or preferred seat choices are generally available for an annual fee, at an airport kiosk or gate or as a frequent flier perk. These coach upgrade options are not considered a new or higher class of accommodation since the seating is still in the coach cabin. However, the use of these upgraded/preferred coach seating options is generally a traveler's personal choice and therefore is at the traveler's personal expense. An agency travel authorization approving official or his/her designee (e.g., supervisor of the traveler) may authorize and reimburse the additional seat choice fee according to internal agency policy (see 301-70.102(k)).