For the third straight week, the league said all tests conducted at the tightly controlled NBA campus at Disney World had come back negative.
The NBA tested 343 players since July 29 in its latest round of testing.
"In the event that a player on the NBA campus returns a confirmed positive test in the future, he will be isolated until he is cleared for leaving isolation under the rules established by the NBA and the Players Association," the NBA said in a statement.
Since players began entering the NBA "bubble" at Orlando, none have tested positive for the virus.
Two players tested positive upon arrival in Florida last month, but neither had fully cleared quarantine and had not admitted into the NBA's safe zone.
The NBA relaunched its season last week after a four-month shutdown due to the pandemic.
The league's relaunch is taking place with 22 teams based at a single location in Orlando for the rest of the regular season and playoffs.