Two DUIs in 2011

I would very much appreciate if you could guide me with a few of my questions before I proceed further with this job opportunity, please.

I have two (2) DUI arrests from 2011. Case #1 resulted in a negligent driving charge, then the case was dismissed by judge. Case #2 was a reckless driving charge, I did not serve jail time. I have complied with all court-ordered/-recommended alcohol related treatments and obligations. There are no other arrests before or since.

My questions are:

  1. I received an offer for a job requiring interim and final clearance. Is there a chance I can obtain an interim clearance? Do they still go ahead with the entire process even after the interim clearance is rejected? And is it possible to have the rejection reversed?

  2. Should I tell my potential manager of this situation?