NBA salary-cap glossary
A spending line above the salary cap. Cross it and the trade rules get stricter — like not being able to take back more salary than you send out.
CBA 2023 Art. VII §2 (first- and second-apron restricted transactions)
Rulebook entry: aprons.full-matrix
Above the first apron a team can't take back more salary than it sends out; above the second it can't aggregate salaries, send cash, or use a traded-player exception — the engine applies the full matrix.
aggregation · BAE · cap hit · cap hold · CBA · dead money · all terms