Which regulation body establishes guidelines for wood use in aircraft construction?

The Federal Aviation Administration (FAA) establishes guidelines for wood use in aircraft construction because it is the primary regulatory body responsible for overseeing and regulating civil aviation in the United States. The FAA sets forth specific standards, airworthiness requirements, and practices that manufacturers must follow to ensure the safety and integrity of aircraft, including the materials used in construction, such as wood. These regulations and guidelines ensure that any materials incorporated into aircraft design, including wood, meet stringent safety and performance criteria, which are essential for the overall safety of aviation operations.

In contrast, the National Transportation Safety Board (NTSB) focuses primarily on accident investigation and safety recommendations rather than setting guidelines for materials. The European Union Aviation Safety Agency (EASA) is similar to the FAA but operates within the EU context and may have separate guidelines specific to European regulations. The Aircraft Certification Board does not exist as a specific regulatory body; the certification processes are generally conducted under the FAA or EASA frameworks. Thus, the FAA is the appropriate entity that establishes regulations for wood use in aircraft construction.