The EPA certification test is the test that the U.S. Environmental Protection Agency requires all individuals who repair building air conditioning and refrigeration systems and purchase and handle refrigerants to take, according to EPATest.com. Those who work on refrigeration systems and air conditioners must receive certification under Section 608 of the Clean Air Act.
EPA certification under Section 608 offers four types of certification, which include Type I, Type II, Type III and Universal, states Contractor-Licensing.com.
Type I is for those who work on small appliances that contain less than 5 lbs. of refrigerant.
Type II is for those who work on high and very high pressure appliances.
Type III is for those who work on low pressure appliances.
Universal certification is obtained once all three certification types are achieved.