History — 521.156

521.156 (1) Unless an applicant demonstrates, at the time of submitting an application for the approval of a change to the type design of an aeronautical product, that a longer period is required for the design, development and testing of the product, and for that reason the Minister approves a longer period, the application is effective during one of the following periods, beginning on the date of the application: (a) five years, in the case of a transport category aeroplane or a transport category rotorcraft; or (b) three years, in the case of (i) an aircraft other than an aircraft referred to in paragraph (a), (ii) an aircraft engine, or (iii) an aircraft propeller. (2) If a change to the type design of an aeronautical product is not approved within the applicable effective period referred to in subsection (1), the applicant may (a) submit a new application for the approval of a change to the type design of the aeronautical product; or (b) apply for an extension of the effective period of the original application. (3) If the effective period of an application for the approval of a change to the type design of an aeronautical product is extended under paragraph (2)(b), the standa…