What is a requirement for terrain clearance during method 1?

During Method 1, the requirement for terrain clearance is set at 1,000 feet. This specification is established to ensure safety by providing adequate vertical separation from terrain and obstacles below the aircraft during flight operations. This method is typically used in areas where environmental conditions allow for an acceptable level of navigation reliability and accuracy. The 1,000 feet requirement is a key component in maintaining safe altitudes while considering terrain, particularly in complex flight environments. Adhering to this standard helps pilots manage the risks associated with flying in varied topography, particularly when navigating through areas that are less densely populated or more challenging in terms of obstacles.