21.B.420 Investigation

(a)The competent authority of the Member State of registry shall perform sufficient investigation activities for an applicant for, or holder of, a noise certificate to justify the issuance, maintenance, amendment, suspension or revocation of the certificate.

(b)The competent authority of the Member State of registry shall prepare evaluation procedures as part of the documented procedures covering at least the following elements:

1.evaluation of eligibility;

2.evaluation of the documentation received with the application;

3.inspection of aircraft.