All officials wear a whistle that is used to stop play as a result of a foul or a violation on the court. Hand signals are used to indicate the nature of the infraction or to administer the game. Nike had the contract to produce balls for the Euroleague Basketball (operators of the EuroLeague and the EuroCup) from 2007 [9] until 2012, when it turned to Spalding. In the Philippines the NCAA (unrelated to the American NCAA) and UAAP use the Nike 4005 Official Tournament Balls. In 2012, it also became official provider for both the EuroLeague and EuroCup competitions. [6] It also serves as provider for Liga ACB. The officials must ensure that the game runs smoothly, and this encompasses a variety of different responsibilities, from calling the game to player and spectator management. They also carry a duty of care to the players they officiate and to ensure that the court and all equipment used is in a safe and usable condition. Should there be an issue that inhibits the safe playing of the game, then it is the job of the officials to rectify the problem. Quite often, the job of an official surpasses that of the game at hand, as they must overcome unforeseen situations that may or may not have an influence on the game. Throughout the season, the league will feature NBA 75 Classic Matchups to celebrate the teams, players, coaches and moments that have defined 75 years of NBA basketball. Below are some of the Classic Matchups that will be highlighted during the season:

a b "Wilson to provide the Official Game Ball for FIBA" (Press release). Amer Sports. 9 June 2015 . Retrieved 17 August 2015. Nivia is based in Jalandhar, India and it has been manufacturing basketballs since 1934. It makes hand stitched balls which have been the official balls for many national, international leagues, championship including the All India Football Federation (AIFF). [10] Six-time NBA All-Star Kyle Lowry of Miami, who played the previous nine seasons with the Raptors and helped the franchise win the NBA championship in the 2018-19 season, leads the Heat in a road game against Toronto on Thursday, Feb. 3 on TNT (7:30 p.m. ET). The matchup is the first of the Heat’s two road games against the Raptors this season.Until the 2006–07 season, it had provided balls for both Europe-wide competitions organized by Euroleague Basketball, the EuroLeague and ULEB Cup (now the EuroCup). [ citation needed] The NBA on TNT, ESPN, ABC and NBA TV will present flexible scheduling throughout the regular season to provide the most compelling matchups to a national audience. Other companies that make basketballs include Adidas, Baden Sports (official supplier for the Harlem Globetrotters), Dunlop, Tarmak, Mikasa, Mitre, Puma to name a few. The seventh season of NBA Saturday Primetime on ABC will premiere on Saturday, Dec. 11 when the Warriors visit the 76ers (8:30 p.m. ET). The Primetime series will have a game each Saturday from Jan. 29 – March 12 except Feb. 19 during the All-Star break. In "three-person" mechanics, the court is further divided among three officials, with the lead (baseline) official determining the position of the other two officials. Normally, the lead official will move to the side of the court in which the ball is located (strong side), particularly if there is a "post-up" player in that position. The official that is on the same sideline as the lead official then takes up a position approximately level with the top of the three-point line and becomes the "trail" official, while the third official will stand across the court near the free-throw line in what is called the center position. This creates a triangle coverage of the court. Often, the lead will switch sides of the baseline during a play, requiring the trail to move down to be level with the free-throw line and become the new center, while the center will move up and become the trail. As the ball moves to the other end of the court in transition, the lead will become the trail, the trail will become the lead, and the center official will remain in the center (unless the new "lead" moves across the baseline to cover the strong side, in which case the center official and trail would then switch positions.)

Difficulty [ edit ] NBA officials Monty McCutchen (center), Tom Washington (#49) and Brent Barnaky reviewing a play.Spalding was the first company to produce a basketball for official use. Company founder A. G. Spalding made the first dedicated basketball in the last years of the 19th century at the behest of James Naismith. It has produced basketballs since that time and was the NBA’s official game ball supplier from 1983 to 2021. They also produce the basketballs for the WNBA and NBA G League. The company also produces a wide variety of balls for the consumer market. ESPN and TNT will both televise doubleheaders on the final day of the regular season, Sunday, April 10. The matchups for ESPN (1 p.m. ET/3:30 p.m. ET) and TNT (7:30 p.m. ET/10 p.m. ET) will be determined at a later date.