What is the visibility requirement in Class E airspace below 10,000 feet?

In Class E airspace below 10,000 feet, the visibility requirement is three statute miles. This regulation is designed to ensure that pilots have enough visual reference to safely operate their aircraft and maintain situational awareness. The three statute miles requirement allows for a reasonable level of visibility that is conducive to flight operations while still accommodating a variety of flying conditions.

Pilots flying in this airspace must also adhere to specific cloud clearance requirements, which include remaining at least 500 feet below, 1,000 feet above, and 2,000 feet horizontally from clouds. Having these visibility and cloud clearance standards is essential for collision avoidance and maintaining safety during flight. Thus, the three statute miles requirement effectively balances safety with operational flexibility for pilots flying in Class E airspace.