Ground Instructor is a certificate issued in the United States by the Federal Aviation Administration; the rules for certification, and for certificate-holders, are detailed in Subpart I of Part 61 of the Federal Aviation Regulations, which are part of Title 14 of the Code of Federal Regulations. The Ground Instructor certificate allows the holder to offer various kinds of ground instruction required of those seeking pilot certificates and ratings. Ground Instructor certificates are issued with ratings, and these determine the exact areas in which the holder may give instruction.