IFR HELIPORTS
Advisory Circular 150/5390-2, Heliport Design, provides recommendations for heliport design to support non-precision, approach with vertical guidance (APV), and precision approaches to a heliport. When a heliport does not meet the criteria of this AC, FAA Order 8260.42, Helicopter Global Positioning System (GPS) Nonprecision Approach Criteria, requires that an instrument approach be published as a SPECIAL procedure with annotations that special aircrew qualifications are required to fly the procedure. Currently there are no operational civil IFR heliports in the U.S. although the U.S. military has some nonprecision and precision approach procedures to IFR heliports.