In non-mountainous areas, how many feet of buffer does OROCA provide?

The correct answer is that OROCA (Off-Route Obstruction Clearance Altitude) provides a buffer of 1,000 feet in non-mountainous areas. This altitude is designed to ensure that aircraft can fly safely above any known obstructions, such as buildings or towers, which may be present in the area. The 1,000-foot buffer serves as an additional safety margin that allows for altimeter errors, turbulence, and other variables that could affect an aircraft's altitude. It is an important consideration for aircraft operating outside of air traffic control airspace or en route, particularly in environments where terrain elevation may not be as significant or challenging as in mountainous regions. Moreover, this altitude helps to enhance situational awareness for pilots navigating through areas without radar coverage, ensuring they maintain safe separation from obstacles they may encounter.