Via NBA press release:
—Larger Referee Crews to Call Nine NBA D-League Games—
NEW YORK, Dec. 12, 2016 – The NBA Development League will experiment with four- and five-person officiating crews for nine games this season, it was announced today. The nine-game trial, which is being conducted by NBA and NBA D-League Referee Operations, will begin on Dec. 26 when the Westchester Knicks face the Long Island Nets at Barclays Center in Brooklyn, N.Y. The initiative will allow the NBA to gather live-game data on the larger officiating crews, continuing its use of the NBA D-league for research and development.
“We are committed to finding ways to better serve our game and provide the highest levels of training for our officials,” said Bob Delaney, NBA Vice President, Referee Operations & Director of Officials. “We are confident in how our three-person system works and are constantly thinking of ways to improve our game. The four- and five-referee initiative is a prime example of that focus and will help the NBA with research and development. The NBA D-League provides the perfect opportunity to conduct this test.”