Sec. 139.5 - Standards and procedures for compliance with the certification and operations requirements of this part.

Certain requirements prescribed by subparts C and D of this part must be complied with in a manner acceptable to the Administrator. FAA Advisory Circulars contain standards and procedures that are acceptable to the Administrator for compliance with subparts C and D. Some of these advisory circulars are referenced in specific sections of this part. The standards and procedures in them, or other standards and procedures approved by the Administrator, may be used to comply with those sections.