What is the reporting requirement for flights within the ADIZ?

The reporting requirement for flights within the Air Defense Identification Zone (ADIZ) is crucial for maintaining security and situational awareness in a controlled airspace. The choice indicating a tolerance of +/- 5 minutes in time and +/- 20 nautical miles in distance is correct because these parameters ensure that aircraft are closely monitored and tracked to verify their intentions and maintain safety.

This specific reporting requirement strikes a balance between sufficient flexibility for pilots and the necessity for air traffic control to maintain an accurate picture of air traffic. These metrics allow for the timely and effective identification of aircraft, which is especially important in an ADIZ where the potential for conflict or security threats must be mitigated.

The other choices do not provide the appropriate level of precision that is necessary for effective monitoring in an ADIZ. A larger time or distance tolerance could introduce ambiguity, complicating the efforts of air traffic controllers to respond to any potential security threats. Therefore, the chosen answer reflects the necessary standards for operational safety and security in these designated airspaces.