What NFPA 80 requires each year: the 13 inspection points, the gap limits, who can inspect and what the report must include.

Test 1 year after install, then every 4 years, or every 6 in hospitals.

How Joint Commission surveys fire doors, dampers and barriers in 2026 under the new Physical Environment chapter, PE.03.01.01.

The life safety K-tags surveyors cite on fire doors, dampers and barrier penetrations, starting with K211, and how to clear each one.

Who must certify dampers in Philadelphia, how often, who may test them and how to file in eCLIPSE.

New Jersey's 2023 damper law: what owners must test, who may test it, the new contractor class and what to do now.

Delaware's damper law: test intervals, certified testers, 30-day filing with the Fire Marshal and the lobby notice.

How to find and fix breached fire and smoke barriers above the ceiling, run an above-ceiling permit program and keep it fixed.