What requirement do MAJCOMs have regarding instrument approach procedures for lower category aircraft?

The requirement that MAJCOMs must ensure aircraft use their own category or higher is rooted in safety and operational efficiency. Instrument approach procedures are designed with specific aircraft categories in mind, taking into account factors such as minimums, approach speeds, and maneuvering characteristics. By mandating that lower category aircraft use procedures appropriate for their own classification or a higher one, the potential for conflicts and safety risks is reduced. This helps maintain a standardized approach to managing different aircraft types operating under instrument flight rules, ensuring that all participating aircraft can safely navigate and execute approaches based on their performance capabilities.

The other options present various misconceptions about operational protocols. Allowing unrestricted access to all aircraft would compromise safety by mixing different performance categories without appropriate precautions. Restricting flight to visual flight rules only does not apply to the requirement for instrument approach procedures, as this option does not address the specific needs and safety protocols for different aircraft categories. Lastly, the notion that procedures must be published for any approach does not align with the operational framework designed to enhance safety for all aircraft involved.