There is abit of confusion, I keep getting diffrent answers, both from inspectors, NYS code division & the Manfuactor. The Rating on a High Hat " Air Tight " There are two type of cans in use, both approved !! Type 1 - AT- Can Only <> Type 2 - Can Requires Trim to comply to AT Rating. Most inspectors approve both, but there are a select few who only allow type 1 to be installed. What is the story about this, who has the final answer, Don't say the inspector. ( PS-I have a job, inspected by two diffrent firms: one approved both types, the other did not... ) You tell me !!