- FAR:
- Part 1: Definitions & Abbreviations
- Night: The time between the end of evening civil twilight and the beginning of morning civil twilight
- For recency of experience: Night: the period from one hour after sunset to one hour before sunrise
- Part 43: Maintenance & Maintenance Records
- Part 61: Pilot and Instructor Certifications
- Part 73: Special Use Airspace
- Part 91: (Most referenced) General Operations and Flight Rules
- NTSB 830: Accident Reporting
- Part 1: Definitions & Abbreviations