The Supreme Court will decide whether a law meant to reduce the disparity between crack and powder cocaine prison sentences can apply those who were convicted — but not sentenced — before its enactment.

The high court on Monday agreed to hear an appeal from Edward Dorsey and Corey Hill, who were both convicted of crack cocaine crimes.

However, the men were not sentenced until after The Fair Sentencing Act went into effect. That law reduces the difference between sentences for crimes committed by crack cocaine and powder cocaine users.

The two men argue that because their sentences came after the law's effective date, they should get its lesser prison time. The 7th U.S. Circuit Court of Appeals disagreed, and the high court will review that decision.