Which two organizations establish national standards?

• A. ANSI and NEMA
• B. ISO and IEC
• C. ANSI
• D. NEMA

Answer: (B)

Standards bodies create the guidelines that products, safety practices, and testing methods follow, helping different countries and industries work together smoothly. ISO (International Organization for Standardization) and IEC (International Electrotechnical Commission) are the primary organizations that develop broad, globally recognized standards across many fields, including electrical safety and performance. Because their standards are adopted or referenced by nations to form national or regional requirements, they’re often described in exam contexts as setting national standards. That international scope is why they’re identified as the best answer here. In contrast, ANSI and NEMA play crucial roles within the United States—ANSI coordinates national standards development and NEMA focuses on electrical equipment standards—but the two organizations named in the correct choice are the ones known for worldwide standardization effort that many countries use as the basis for their own national standards.