COWP to OWP

[Nav9191]

1. Hi everyone,
   
   I want to thanks everyone in advance.
   My question is if I can change my work permit closed to open?
   
   I came here on visitor visa,
   than I got LMIA and got Closed work permit.
   
   And now I got my PNP approval. On pnp approval it says, Restrictions on employment- NO
   
   I wanna ask if I can change my employer?
   
   P.S- Already got my Federal File Number.
   
   Thanks