I need advice

[ss1111]

Hello,
I did CK2 10 years ago and quit. Now I received a green card and think maybe I need to do the USMLE step1.
My question:Is it acceptable to have this ten years gap?

[Recodeing]

I heard that If you didnot complete all the steps in 7 years you have to resign and re take all the steps. Maybe you can call USMLE and ask them?