What does the term ‘airport law’ refer to?

The term 'airport law' refers to a body of legal principles and regulations that govern the operation and management of airports. This includes a collection of FAA (Federal Aviation Administration) regulations, federal statutes, and legal adjudications that address the various aspects of airport operations, safety, land use, and the rights of users and operators. Understanding airport law is crucial for ensuring compliance with legal standards and for navigating the complex regulatory environment surrounding airport management.

The other choices focus on specific aspects of airport operations, such as budgeting, training, and financial management, which do not encapsulate the broader legal framework defined by airport law. Hence, the correct answer accurately captures the comprehensive nature of laws and regulations relevant to airports, while the other options address more operationally focused topics.