Which term refers to standards for new sources in the Clean Water Act?

• A. Best available technology economically achievable
• B. New conventional pollutant control technology
• C. New source performance standards
• D. New Source Performance Standards

Answer: (D)

Standards for new sources in the Clean Water Act are called New Source Performance Standards. These are the rules set to apply to newly constructed facilities, ensuring that new discharges meet stricter performance benchmarks from the outset rather than relying on limits that apply to existing sources. This distinguishes them from effluent guidelines that regulate existing sources and from technology-based limits like best available technology economically achievable, which are not the term used for designating standards specifically for new facilities. The exact term used in the statute and practice for new-source limits is New Source Performance Standards.