What is the service requirement following OCS?

It's just three years

I was enlisted and went through OCS to commission as an Officer in the Guard. If you're unsure about continuing AD I would strongly recommenced looking at Guard and Reserve options. The obligation is 6 years (I believe) but this gives you an opportunity to continue serving in a smaller capacity while focusing on a civilian life and career.

When I commissioned as a mustang officer in 1997, the initial active duty service obligation was 3-years. It was not so much as a requirement in my mind but time for both you and the service to see if you wanted to commit further. This was before all AD officers gained a regular commission; not sure if the initial 3-years these days is still a reserve commission. During that 3-year period and at the anniversary date you could be separated if you did not meet the service standards; as well you could separate on your own accord after the initial 3-years. Also, be aware unless there is no break-in-service between enlisted and commission you will have to serve 10-years commissioned in order to retire as an officer. I think this reg is still in effect; again no biggie if you plan on making it a career.

I would suggest if you're not committed, then do not apply. Since you're enlisted, you should already know whether you plan on making a career of the service.

Good luck!