Originally Posted by gold

Qualified CAPTAIN should have a minimum of 2500 hours, with ATP written, 1000 multi-engine hours preferably-part 121 experience. Qualified FIRST OFFICER (SIC) should have a minimum of 1500 hours, with ATP written, 500 multi-engine hours preferably-part 121 experience.

The above is straight from the Silver website. It seems silver has changed their mins over the last 6 months more than any other company. Not too long ago they were just requiring a basic commercial multi for FOs and nothing else. The part I'm confused about is the multi requirement for FOs. Is 500 multi hours required, or just preferred?