Which agency would investigate transportation accidents and incidents in the United States?

• A. National Transportation Safety Board
• B. Federal Bureau of Investigation
• C. National Credit Union Administration
• D. Securities and Exchange Commission

Answer: (A)

The main idea here is identifying the agency that conducts formal investigations into civil transportation accidents across multiple modes. The National Transportation Safety Board fits this role exactly: it is an independent U.S. government agency dedicated to investigating serious transportation accidents and incidents—aviation, highway, marine, railroad, and pipeline—and to determining probable causes and issuing safety recommendations to prevent future accidents. It’s not a regulator or prosecutor, but an investigator focused on lessons learned to improve safety.

The other agencies have different missions. The FBI handles criminal investigations, including those involving potential crime. The National Credit Union Administration regulates and charters credit unions. The Securities and Exchange Commission oversees securities markets and investment activities.