A common carrier by aircraft, or a restricted common carrier by aircraft, operating under a certificate issued by the Commission may occasionally deviate from the route over which it is authorized to operate under the certificate, under such general or special rules and regulations as the Commission may prescribe.

No air carrier shall be deemed to have violated any term, condition, or limitation of its certificate by landing or taking off during an emergency at a point not named in its certificate or by operating in an emergency, under regulations which may be prescribed by the Commission, between terminal and intermediate points other than those specified in its certificate.