Other tests were inconclusive, leading to debate among government agencies, and in 1994 and 1996 the FAA updated air traffic control regulations to require greater separation behind the 757 than other large-category jets.
Outras probas foron inconclusas, abrindo un debate entre as axencias do goberno, e en 1994 e 1996 a FAA actualizou as regulacións de control aéreo para pedir unha maior separación detrás do 757 que a doutros grandes reactores.