Each team has two challenges per game, each of which requires the use of a timeout. If the challenge is ruled in the team's favor, the team gets its timeout back. ... If a team initiates a challenge with no timeouts remaining or when it is not permitted to do so, it is a penalty and loss of 15 yards.

Can you challenge after a timeout?

A team must have at least one timeout in order to challenge. If a challenge is not successful, a timeout is charged. Regardless of the outcome, teams do not get any additional challenges. After the three minute warning in the fourth quarter, unused challenges are lost for the remainder of the game.

Can you challenge a no call in NBA?

A team loses its opportunity to challenge the prior call if it is called for a delay-of-game after the call in question but prior to calling timeout and simultaneously signaling for a challenge.