HVAC certifications fluctuate by point out, and several states demand technicians to be certified by passing exams. The simplest way to figure out what certifications and licenses you would like is to look “[your state] + HVAC license polices” on Google or click on your state on this map. The https://lorenzosagmr.law-wiki.com/1206102/not_known_factual_statements_about_preferred_content_language_english