Requires owner or operator of certain trains to have discharge response, cleanup, and contingency plans to transport certain hazardous materials by rail; requires DEP to request bridge inspection reports from US DOT.

S 652 requires rail companies transporting large volumes of hazardous materials (like 200,000+ gallons of petroleum or 20,000+ gallons of other hazardous substances) to create and maintain emergency response, cleanup, and contingency plans. It directly affects rail operators of "high hazard trains" carrying these materials. The bill also mandates the New Jersey Department of Environmental Protection (DEP) to request bridge inspection reports from the U.S. Department of Transportation to assess safety risks. These requirements aim to improve preparedness and safety for potential rail spills involving hazardous materials.