Final answer:
Under 703/704 Operation for night VFR, aircraft must fly at least 1,000 ft above the highest obstacle within 2,000 ft horizontally.
Step-by-step explanation:
Under 703/704 Operation, night VFR, the aircraft must not be operated at less than 1,000 ft. (300 m) above the highest obstacle located within a horizontal distance of 2,000 ft. (600 m). This regulation is designed to ensure the safety and efficiency of air traffic, especially in conditions of reduced visibility at night. It is essential for pilots to adhere to these guidelines to prevent collisions with obstacles and to maintain safe operational standards.