C.A.B. Acts to Ease Curbs On Airlines' Competition
CAB formally proposes experiment that would permit existing or new airlines to enter into or withdraw from competition on selected routes without bd's permission; suggests that plan be tried on 2 or more routes (more than 750 mi) and 4 or 5 short-haul routes (under 750 mi) as well as routes to little-used airports on periphery of some cities (M)