The North Bergen Interscholastic Athletic League, abbreviated NBIL or NBIAL, was an athletic conference of twelve high schools located in the northern part of Bergen County, New Jersey. Wayne Hills High School, located in Wayne, Passaic County, New Jersey, was the only school not located in Bergen County.
There are twelve member NBIAL schools, which are split up into two divisions. Division 1 is made up of all Group III schools, while Division 2 is made up of Group II schools. Group is a classification of the school size as determined by the New Jersey State Interscholastic Athletic Association (NJSIAA). The bigger the Group, the more students that go to that school.
The league had originally eight members, but added Westwood and Wayne Hills in the mid-1970s. It expanded further, adding Bergenfield and Fair Lawn in the early 1990s, and split into two divisions for most sports. Mahwah replaced Westwood when the latter left the league, and Ramsey replaced longtime league member River Dell.
After the original NJSIAA realignment in 2009, Paramus Catholic High School was added to the NBIL while Wayne Hills and Fair Lawn left to join the North Jersey Tri-County Conference. The NBIL ceased to exist following the 2009-10 seasons, and its remaining member institutions joined with most of the NJTCC schools to form the Big North Conference. Pascack Hills, who participated in the NBIL in every sport except for football (where they were a member of the Bergen County Scholastic League), was the only school that did not and followed its football conferencemates to the North Jersey Interscholastic Conference; they eventually reconsidered and moved to the Big North in 2012.
(Note: Wayne Valley High School, despite belonging to the same school district as Wayne Hills High School, is not part of the NBIL.)