Commonwealth Consolidated Regulations Commonwealth Consolidated Regulations(1) A letter of ATSO design approval may be issued for an appliance that is manufactured in a foreign country with which Australia has an agreement for the acceptance of these appliances for export and import and that is to be imported into Australian territory, if:
(a) the national aviation authority of the country in which the appliance was manufactured certifies that the appliance has been examined, tested, and found to meet the applicable ATSO approved under an ATSO authorisation, or letter of ATSO design approval, under paragraph 21.305(b) or the applicable performance standards of the country in which the appliance was manufactured and any other performance standards CASA prescribes to provide a level of safety equivalent to that provided by the ATSO approved under an ATSO authorisation, or letter of ATSO design approval, under paragraph 21.305(b); and
(b) the article manufacturer has submitted to CASA one copy of the technical data required in the applicable performance standard through the national aviation authority of the country in which the appliance was manufactured.
(2) The letter of ATSO design approval will be issued by CASA and must list any deviation granted to the manufacturer under regulation 21.609.
(3) After CASA has issued a letter of ATSO design approval and an airworthiness approval mentioned in paragraph 21.502(1)(c) has been issued, the manufacturer is authorised to identify the appliance with the ATSO marking requirements described in paragraph 21.607(c) and in the applicable ATSO. Each appliance must be accompanied by an airworthiness approval mentioned in paragraph 21.502(1)(c).
Source FARs section 21.617 modified.