Type II EPA 608: High-Pressure Appliances and Service Trap Questions

The short field answer:
Type II covers servicing or disposing of high- or very high-pressure appliances, except small appliances and MVACs. The traps are usually about evacuation levels, major vs non-major repairs, leaking vs non-leaking systems, and what equipment/methods are allowed. 

Core trap table

EPA’s current test-topic guidance specifically calls out evacuation rules by appliance size, leak condition, major vs non-major repair, and the prohibition on using system-dependent recovery equipment on systems with more than 15 pounds of refrigerant. EPA’s definitions page also makes “major repair” a very specific term, not a vague one. (US EPA)

High-pressure evacuation numbers worth remembering

Those numbers come straight from EPA’s evacuation table and are exactly the kind of thing exam questions twist by changing just one variable: leak status, charge size, equipment age, or repair type. 

Modern trap:
Leak-repair requirements for 50+ lb substitute refrigerant systems were rescinded in 2020, but venting prohibition, evacuation rules, certification, and sales restrictions still apply to substitutes used in stationary systems. (US EPA)