(a) New entrant U.S. air carriers.
(1) A new entrant initiating operations under part 121 of this chapter
on or before December 31, 1994, may initiate service without regard to the
percentage of its fleet composed of Stage 3 airplanes.
(2) After December 31, 1994, at least 25 percent of the fleet of a new
entrant must comply with Stage 3 noise levels.
(3) After December 31, 1996, at least 50 percent of the fleet of a new
entrant must comply with Stage 3 noise levels.
(4) After December 31, 1998, at least 75 percent of the fleet of a new
entrant must comply with Stage 3 noise levels.
(b) New entrant foreign air carriers.
(1) A new entrant foreign air carrier initiating part 129 operations on
or before December 31, 1994, may initiate service without regard to the
percentage of its fleet composed of Stage 3 airplanes.
(2) After December 31, 1994, at least 25 percent of the fleet on U.S.
operations specifications of a new entrant foreign air carrier must comply
with Stage 3 noise levels.
(3) After December 31, 1996, at least 50 percent of the fleet on U.S.
operations specifications of a new entrant foreign air carrier must comply
with Stage 3 noise levels.
(4) After December 31, 1998, at least 75 percent of the fleet on U.S.
operations specifications of a new entrant foreign air carrier must comply
with Stage 3 noise levels.
(c) Calculations resulting in fractions may be rounded to permit the
continued operation of the next whole number of Stage 2 airplanes.