Which Annex of the Implementing Rule for Continuing Airworthiness contains the regulations for maintenance licenses?

The correct answer regarding which Annex of the Implementing Rule for Continuing Airworthiness contains the regulations for maintenance licenses is that it is indeed found in Annex 3. This Annex specifically addresses the licensing of personnel involved in the maintenance of aircraft and related components, detailing the qualifications, training requirements, and privileges associated with different categories of maintenance licenses. This ensures that individuals responsible for maintaining aircraft meet standard competency and safety requirements, which is crucial for the aviation industry's operation.

In contrast, other Annexes fill different roles: Annex 1 typically covers personnel licensing in general, which is distinct from the specific maintenance-related regulations found in Annex 3. Annex 2 is generally related to air operations, and Annex 4 may pertain to other operational aspects. This distinction is essential in aviation regulations to ensure that skilled professionals are properly certified to maintain the safety and airworthiness of aircraft. Thus, understanding the specific content of each Annex aids in comprehensively grasping the regulatory framework necessary for effective aircraft maintenance practices.