N.J. Stat. § 40:55D-66.7
In considering an application for development approval for a nonresidential development that is to include a child care center that is located on the business premises, is owned or operated by employers or landlords for the benefit of their employees, their tenants' employees, or employees in the area surrounding the development, and is required to be licensed by the Department of Human Services pursuant to P.L. 1983, c.492 (C.30:5B-1 et seq.), an approving authority may exclude the floor area to be occupied in any building or structure by the child care center in calculating the density of that building or structure for the purposes of determining whether or not the density is allowable under any applicable municipal zoning ordinance.
N.J.S. § 40:55D-66.7