The premier accrediting agency for HVAC training programs are 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.
It is also important to try and find small class numbers, which means you will get one on one tuition from the program teachers. A good HVAC college will also have an on-campus science lab with modern equipment. Before enrolling make sure you visit and explore the campus and get a feel for the place, the classroom, the facilities and talk to the faculty, if possible. Also find out whether there is any flexibility in time-managing classes for working students, and also how you could go about researching financial aid, if required.
BEIGE BOOK: FED SEES 'MODEST TO MODERATE' GROWTH IN US BUSINESS ACTIVITY
The Federal Reserve's December Beige Book is