Whether the Municipal Land Use Law prohibits a municipality from using zoning definitions or land-use-control formulas that differ from nonmandatory definitions supplied in the statute.
Holding
No. A municipality may alter nonmandatory MLUL definitions and may use other ratios or regulatory techniques to regulate the intensity of land use, provided the measure advances an MLUL purpose and otherwise complies with governing law.
Reasoning
Municipal zoning authority comes from the Legislature's delegation in the MLUL, but that delegation must be liberally construed in favor of municipalities. A zoning ordinance is presumptively valid, and the challenger bears the burden to show that it is unconstitutional, preempted, arbitrary, or inconsistent with statutory requirements. Courts do not invalidate an ordinance merely because they might disagree with its policy wisdom.
The MLUL's definitions apply "for the purposes of this act" unless context indicates otherwise. That language establishes the meaning of terms when they are used in the MLUL itself; it does not broadly forbid municipalities from defining terms differently in their own ordinances. The statute and its history contain no indication that the Legislature intended every statutory definition to rigidly constrain local zoning innovation.
N.J.S.A. 40:55D-65(b) expressly authorizes municipalities to regulate building size, lot occupancy, and intensity of land use through floor-area ratios as well as "other ratios and regulatory techniques." The Legislature's use of that open-ended language permits local governments to employ tools in addition to a conventional floor-area ratio, including Fair Haven's absolute floor-area cap and Atlantic Highlands's slope-based adjustment to development limits.
Some MLUL terms do remain controlling. A municipality cannot alter a definition that confers statutory rights, such as the definition of an interested party, or evade a mandatory MLUL command, such as the requirement that specified community residences be permitted in every residential district. But neither the Fair Haven cap nor the Atlantic Highlands slope factors conflicted with such a mandatory statutory rule.
The Court disapproved Manalapan Builders Alliance to the extent it held that a municipality may never depart from MLUL definitions when controlling development. The environmental set-asides at issue in that earlier case could properly be understood as another regulatory formula authorized by N.J.S.A. 40:55D-65(b), rather than as an impermissible revision of the statutory floor-area-ratio definition.