Where are technical specifications from ICAO primarily found?

The primary location of technical specifications from the International Civil Aviation Organization (ICAO) is in the annexes. ICAO’s annexes are systematic collections of standards and recommended practices (SARPs) that member countries are expected to implement. Each annex pertains to a specific area of aviation, such as aircraft operations, airworthiness, and air navigation services. These documents serve as authoritative references that guide states in developing their own national regulations.

While other options, such as government regulations and international treaties, play a role in the implementation of ICAO standards, they do not serve as the direct source of the technical specifications themselves. Government regulations may be influenced by ICAO's annexes, but they are not where the specifications are initially documented. Similarly, international treaties may address aviation issues broadly, but they do not provide the specific technical details found in the annexes. Public records might include various aviation-related documents but would not specifically contain the technical specifications given by ICAO. Thus, the correct answer highlights the importance of the annexes in the context of international aviation law and standards.