<span>Do you have trouble looking up alphabetized lists?

<span class="enumbell">(32)</span><span class="ptext-">&ldquo;navigable airspace&rdquo; means airspace above the minimum altitudes of flight prescribed by regulations under this subpart and subpart III of this part, including airspace needed to ensure safety in the takeoff and landing of aircraft.


</span><span class="ptext-">This is not a reg, but it is the law. US Code trump's FAA regs.

Do I have to explain what it means when you add the non prefix to any word, including this?</span></span>