Requires developer to submit stormwater impact study as part of application for planned development site plan approval.

This bill requires developers seeking approval for planned development projects (like residential clusters or commercial sites) to submit a stormwater impact study as part of their site plan application. The study, conducted by a third-party consultant agreed upon by both the developer and local planning board, must evaluate pre- and post-development stormwater runoff, downstream flood risks, and potential mitigation strategies. It applies directly to developers and planning boards reviewing applications for planned developments under New Jersey's Municipal Land Use Law. The bill amends existing law to mandate this review before site plan approval can be granted.