applicable monthly guarantee
(D) Airline flight crews (i) Determination For purposes of determining whether an employee who is a flight attendant or flight crewmember (as such terms are defined in regulations of the Federal Aviation Administration) meets the hours of service requirement specified in subparagraph (A)(ii), the employee will be considered to meet the requirement if— (I) the employee has worked or been paid for not less than 60 percent of the applicable total monthly guarantee, or the equivalent, for the previous 12-month period, for or by the employer with respect to whom leave is requested under section 2612 of this title ; and (II) the employee has worked or been paid for not less than 504 hours (not counting personal commute time or time spent on vacation leave or medical or sick leave) during the previous 12-month period, for or by that employer. (ii) File Each employer of an employee described in clause (i) shall maintain on file with the Secretary (in accordance with such regulations as the Secretary may prescribe) containing information specifying the applicable monthly guarantee with respect to each category of employee to which such guarantee applies. (iii) Definition In this subparagraph, the term “applicable monthly guarantee” means— (I) for an employee described in clause (i) other than an employee on reserve status, the minimum number of hours for which an employer has agreed to schedule such employee for any given month; and (II) for an employee described in clause (i) who is on reserve status, the number of hours for which an employer has agreed to pay such employee on reserve status for any given month, as established in the applicable collective bargaining agreement or, if none exists, in the employer’s policies.