Amendment of Class D and Class E4 Airspace; Caldwell, NJ

This Federal Aviation Administration regulation makes technical updates to airspace documentation for Essex County Airport in Caldwell, New Jersey, without altering actual flight operations or safety requirements. **Economic Impact**: The changes are purely administrative, involving coordinate updates and terminology standardization. There are no direct economic costs or benefits, as airspace boundaries and operating procedures remain unchanged. Airlines, pilots, and airport operations continue as before, avoiding any operational disruptions or compliance costs. **Affected Populations**: The regulation primarily affects pilots, air traffic controllers, and aviation professionals who reference official airspace descriptions for Essex County Airport. While the local airport and surrounding New Jersey communities fall within this airspace, they experience no practical changes to flight patterns, noise levels, or airport access. **Key Changes**: The regulation updates geographic coordinates to reflect current surveying standards and replaces outdated terminology by substituting "Chart Supplement" for "Airport/Facility Directory" in official documents. These changes align with modern FAA documentation standards while maintaining identical airspace boundaries and operational requirements. The updates ensure consistency across federal aviation publications without impacting day-to-day aviation activities.