135.297(a)(1)
By the grace of the POI I go....
Unless it’s it’s stupendously clear run it by your POI.
Regs say “PIC”.
Now if we just make up a scenario:
Multi crew - PIC needs .297 SIC does not.
However if this SIC is assigned and acts as PIC in another type of aircraft then yes.
Let’s say an operation that has both a King Air 350 and a Cessna Caravan.
Or a Lear and a King Air 90.
Junior pilot could be SIC on the Lear and PIC on the King Air 90.
In which case both pilots need the .297
I’m sorry I’ve had a beer.