You must pass two qualifying exams in orthodontic assisting and infection control to become a Certified Orthodontic Assistant. As of April 2011, DANB certification for OAs was recognized in 38 states and required in four - Massachusetts, Maryland, New Jersey and Oregon.
American Standard Companies, Inc. was a global manufacturer of plumbing, heating, ventilating and air conditioning (HVAC) systems and services, bath and kitchen products and vehicle control systems.he company was formed in 1929 through the merger of the American Radiator Company and Standard Sanitary Manufacturing Company forming the American Radiator and Standard Sanitary Corporation. The group was renamed to the American Standard Corporation in 1967.
Summer is for relaxing, not battling the heat. A Trane central air conditioner allows you to rest comfortably day or night while eliminating the worry about your next utility bill.Each of our central air conditioning systems are designed to give you a cooler, happier life.he benefits of owning a Trane central air conditioning unit do not end after installation. Each AC unit is backed with a Trane warranty, guaranteeing a cooler, more comfortable home year round.