Is There an OPM for the Government in Connecticut

I worked for IRS 20 plus years ago. I held the position of Clerk(GS 5). I worked in small case and large case units in Bloomfield and Paterson, NJ. I left because IRS moved from Paterson but years later returned. I want to know if I can go to an OPM office and apply as I did years ago in Newark, NJ or how can I apply. I really want to get back into the Government but cannot get any help around here and really don't want to move.