Founded in 1966 by New York Rangers GM, Emile Francis, the Metropolitan Junior Hockey League played its 50th season in 2015–16.

The MetJHL was affiliated with higher level Atlantic Junior Hockey League (AJHL), a Tier III Junior A league, while the MetJHL was sanctioned as a Tier III Junior B league until 2011 when USA Hockey dropped the letter designations in Tier III.

In May 2012, the AJHL left the Atlantic Metropolitan Hockey League family and became its own entity managed by the team owners.

The only NA3AHL team not included was the Exton Bulls who were sitting at last place with two wins while also regularly losing by double-digit scores.

The Long Island Royals were the final Foster Cup champions.