1.1 Scope. 1.1.1 This standard specifies the minimum requirements for fire protection for heliports and rooftop hangars. 1.1.2 This standard does not apply to ground-level helicopter hangars. 1.1.3 All hangars not covered by this standard are required to comply with NFPA 409, Standard on Aircraft Hangars. 1.1.4 Temporary landing sites and emergency evacuation facilities are outside the scope of this standard.