The premier accrediting agency for HVAC training programs is the National Center for Construction Education and Research, which is the Partnership for Air-Conditioning, Heating, and Refrigeration, HVAC Excellence, North American Technician Excellence and Research, Environmental Protection Agency, and the Occupational Safety and Health Administration. You MUST select a college that has at least one accreditation.
Smaller class sizes are also important, which means you will get one to one attention from the program teachers. A good HVAC college will also have an onsite science lab with professional-grade tools. Visit the campus and get a feel of the place, the teaching areas, the facilities available and talk to the faculty, if they are available. You should also find out whether they allow any flexibility in time-managing classes for students with external jobs, and also how you could go about researching financial aid, if you are eligible.
BEIGE BOOK: FED SEES 'MODEST TO MODERATE' GROWTH IN US BUSINESS ACTIVITY
The Federal Reserve's December Beige Book is