CFO PDOS is for PR visas
With 491 If no job bago mag move ,hindi pa kayo under ni OWWA -OEC.
If uuwi naman at may work na- need nyo kumuha ng OEC as long as you are holding 491.
If converted na to 191 ,formality na lang yung CFO PDOS they will issue it pag ka apply without taking the seminar.