This report explores the growing value of multilingualism in U.S. workplaces, where one in five Americans speaks more than one language. It highlights the business benefits of a multilingual workforce—including expanded global reach, stronger customer relationships, innovation, and collaboration—and offers best practices for clear communication. Guidance includes using AI translation tools, simplifying language, leveraging visuals, and encouraging open feedback. The report also clarifies when English-only policies may be permitted under EEOC standards, emphasizing that such rules must be narrowly applied for safety or operational reasons.