This dropped yesterday.
https://www.govinfo.gov/content/pkg/...2022-20328.htm
Powered Lift time is now completely fair game to satisfy the Airplane ATP prerequisite of 250 Airplane PIC hours. The only stipulation is one can only use time attained in "horizontal flight," which we all know is probably 90% or more of our V-22 time. Any airplane flying one does on the side is simply icing on the cake.