Reference
Definition
What the word means. This is not a work instruction.
TAB readiness means the system is mechanically ready for testing, adjusting, and balancing. Dampers are accessible, flex is clean, grilles are installed, filters are in, access is open, major leaks are sealed, and the system is not blocked by hidden install mistakes.
TAB finds problems that rough-in crews bury. Good crews find their own problems first.