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.
Trane is among the industry leaders in the air conditioner world for good reason. Trane air conditioner prices are competitive and its products have earned a reputation for reliability throughout the company's complete line.This reputation is backed by a 10-year minimum warranties on nearly every part of any Trane air conditioner.hat you end up paying is a combination of the price of the unit and the installation cost. This guide is meant as an overview of estimated Trane air conditioner prices, including installation and the wholesale unit cost.