What are the principal sources of regulations for private pilots?

The Air Navigation Order and Air Navigation (General) Regulations are indeed the principal sources of regulations for private pilots. These documents are crucial because they provide comprehensive guidance on the legal requirements for flying in a country’s airspace. The Air Navigation Order outlines the overarching legal framework for aviation in general, while the General Regulations specify rules regarding aircraft operation, pilot responsibilities, and airspace usage that private pilots must adhere to.

This ensures that pilots operate within the established safety guidelines and procedures set forth by regulatory authorities. Understanding and complying with these regulations are fundamental for all pilots to ensure safety and legality while flying.

In contrast, while the other options mention relevant documents or procedures, they do not serve as the principal regulations specifically tailored for private pilots. For instance, international regulations and local laws can provide useful context and additional requirements, but they are not the primary references that a private pilot typically consults for operational rules.