Does SOW require for the first time H1B petition? or is it - by default you should get 3 years of visa stamping

Hi,
Does SOW require for the first time H1B petition at the time of stamping? or is it - by default it should get 3 years of visa stamping.

It all depends on how the petition was filed. You need to check with attorney on how it was filed. In general, it is a combination of client letter, SOW and agreements, Check with your attorney…Always, it is up to the USCIS to decide that.