In addition to implementing the NPDES requirements, many states and local governments have enacted their own stormwater management laws and ordinances, and some have published stormwater treatment design manuals.
Pored primene zahteva NDPES, mnoge države i lokalne uprave su donele sopstvene zakone i uredbe o upravljanju padavinskim vodama, a neke su objavile priručnike za tretman padavinskih voda.