According to the NEC, which statement is true about receptacles?

• A. Receptacles must be listed.
• B. Receptacles must be marked with the manufacturer's name or identification.
• C. Re receptacles must be marked with their voltage and amperage rating.
• D. All of the above

Answer: (D)

In the NEC, receptacles are treated as safety-critical equipment that must be evaluated and clearly identified. Receptacles must be listed, meaning they’ve been tested and certified by a recognized testing laboratory to meet safety standards. They also must bear the manufacturer’s name or identification so inspectors and installers can verify origin and ensure traceability. In addition, marking the receptacle with its voltage and amperage rating communicates the electrical limits and compatibility with the circuit, helping prevent undersized devices on higher-volt circuits or overcurrent problems. Because all three requirements are part of NEC labeling and listing rules, every statement is true, so “all of the above” is the correct choice.