CA DOMESTIC VIOLENCE EXPUNGEMENT.?

I RECIEVED AN EXPUNGEMENT IN CALIFORNIA FOR A DV CASE IN 03. DOES THIS LIFT THE FEDERAL BAN AND CAN I OWN A WEAPON IF I MOVED TO NEVADA OR UTAH? OR DO ALL BANS STAY IN PLACE FOR EVERYWHERE? IF SO WOULD A CERTIFICATE OF REHABILITATION OR PARDON BE NEEDED? OR AM I JUST SCREWED ALL AROUND THE BOARD? I REFUSE TO LET ONE MISTAKE A LONG TIME AGO BE DRAGGED AROUND FROM MY RIGHT TO OWN GUNS TO A JOB APPLICATION. THANKS