Environmental law in New Jersey consists of legislative and regulatory efforts to protect the natural environment in the State of New Jersey. Such efforts include laws and regulations to reduce air and water pollution, regulate the purity of drinking water, remediate contaminated sites, and preserve lands from development, particularly in the Pinelands of southern New Jersey and the Highlands in the north of the state. Environmental laws in New Jersey are enforced primarily by the New Jersey Department of Environmental Protection (NJDEP).