Group Rates for CPR Classes in Centreville, Maryland! Check Rates!FAQsContact Does your business in Centreville, Maryland need to meet OSHA regulations? Do several people in your office need certification? Does your church or civic group want the knowledge, but not the certificate? We’ll come to your facility in Centreville to train your group or staff. You can count on our veteran owned business to train your staff in a professional, timely and effective manner. Click here for group rates & details