Regulators are likely to end what are,
in effect, long-standing exemptions permitting pilots
of small turboprop aircraft at small carriers to fly as much as 20 percent more hours per month than
pilots at larger airlines fly, with the consequence that some carriers could be forced to hire additional pilots.
My understanding of the passage goes like this.
Regulators(the person that regulates something) are likely to stop long-standing exemptions, which have been provided for pilots of small turboprops aircraft.
but the question is Why Regulators are likely to stop...….?to fly as many as 20 percent more hours per month than pilots at larger airlines do,
this leads to some carriers could be forced to hire additional pilots.
Dear DmitryFarber, correct me if my understanding was wrong.