21L.A.43 Declaration of design compliance

• Regulation (EU) 2022/1358 found in: Initial Airworthiness and Environmental Protection (748/2012) Part-21 Part-21L (Jul 2024)

21L.A.43 Declaration of design compliance Regulation (EU) 2022/1358 (a)     Prior to producing an aircraft or agreeing with a production organisation to produce an aircraft, a natural or legal person who designs that aircraft shall declare that its design complies with the applicable detailed technical specifications and the applicable environmental protection requirements referred to in point [21L.A.45](#_DxCrossRefBm1649097834). (b)     The declaration shall be made in a form and manner established by the Agency and shall contain at least the following information: 1.       the name of the person submitting the declaration, and their address/place of business; 2.       a unique reference for identifying the aircraft; 3.       indication of the applicable detailed technical specifications and the applicable environmental protection requirements according to point [21L.A.45](#_DxCrossRefBm1649097834) with which the declarant declares compliance; 4.       a signed statement made under the sole responsibility of the person making the declaration that the design of the aircraft, and if applicable the engine or propeller, is in compliance with the applicable detailed technical specifications and the applicable environmental protection requirements referred to in point 3, according to the compliance demonstration plan referred to in point (c) (3); 5.       a signed statement made under the sole responsibility of the person making the declaration that no features or characteristics have been identified by that person that may make the aircraft unsafe or environmentally incompatible for the intended use; 6.       a signed commitment that the person making the declaration will undertake the obligations referred to in point [21L.A.47](#_DxCrossRefBm1649097833); 7.       if the aircraft design covered by the declaration includes an engine or propeller: (i)      a reference to the engine or propeller type certificate issued or determined in accordance with [Annex I](#_DxCrossRefBm1649096844) (Part 21) or issued in accordance with this Annex; or (ii)     in the case of piston engines and fixed pitch propellers, a statement that the declaration of design compliance of the aircraft covers the compliance of the engine or propeller with the applicable engine or propeller technical specifications; 8.       the instructions for continued airworthiness; 9.       the operating limitations; 10.     the data sheet for airworthiness and, if applicable, emissions; 11.     the data sheet for noise, if applicable; 12.     any other conditions or limitations prescribed for the aircraft, and if applicable the engine or propeller, in the applicable detailed technical specifications and the applicable environmental protection requirements with which the declarant declares compliance. (c)      The declarant shall submit the declaration of design compliance referred to in point (b) to the Agency. Together with this declaration, the declarant shall provide to the Agency: 1.       a drawing of the aircraft; 2.       a detailed description of the aircraft design, including all the configurations covered by the declaration, the operating characteristics, design features and any limitations; 3.       a compliance demonstration plan detailing the means by which compliance with the applicable detailed technical specifications and the applicable environmental protection requirements has been demonstrated during compliance demonstration; 4.       recorded justifications of compliance obtained from the compliance activities that have been conducted according to the compliance demonstration plan; 5.       where compliance is demonstrated by carrying out tests, recorded justification of the conformity of the test articles and equipment, demonstrating: (i)      for the test specimen, that: (A)     the materials and processes adequately conformed to the specifications for the design; (B)     the constituent parts of the products adequately conformed to the drawings in the design; and (C)     the manufacturing processes, construction and assembly adequately conformed to those specified in the design; (ii)     that the test and measuring equipment used for the test were adequate for the test and appropriately calibrated; 6.       reports, results of inspections or tests that the declarant found necessary to determine that the aircraft, and if applicable the engine or propeller, complies with the applicable detailed technical specifications and the applicable environmental protection requirements. #### 21L.A.43 Declaration of design compliance *Regulation (EU) 2022/1358* (a) Prior to producing an aircraft or agreeing with a production organisation to produce an aircraft, a natural or legal person who designs that aircraft shall declare that its design complies with the applicable detailed technical specifications and the applicable environmental protection requirements referred to in point [21L.A.45](#_DxCrossRefBm485231330). (b) The declaration shall be made in a form and manner established by the Agency and shall contain at least the following information: 1. the name of the person submitting the declaration, and their address/place of business; 2. a unique reference for identifying the aircraft; 3. indication of the applicable detailed technical specifications and the applicable environmental protection requirements according to point [21L.A.45](#_DxCrossRefBm485231330) with which the declarant declares compliance; 4. a signed statement made under the sole responsibility of the person making the declaration that the design of the aircraft, and if applicable the engine or propeller, is in compliance with the applicable detailed technical specifications and the applicable environmental protection requirements referred to in point 3, according to the compliance demonstration plan referred to in point (c) (3); 5. a signed statement made under the sole responsibility of the person making the declaration that no features or characteristics have been identified by that person that may make the aircraft unsafe or environmentally incompatible for the intended use; 6. a signed commitment that the person making the declaration will undertake the obligations referred to in point [21L.A.47](#_DxCrossRefBm485231329); 7. if the aircraft design covered by the declaration includes an engine or propeller: (i) a reference to the engine or propeller type certificate issued or determined in accordance with [Annex I](#_DxCrossRefBm485230334) (Part 21) or issued in accordance with this Annex; or (ii) in the case of piston engines and fixed pitch propellers, a statement that the declaration of design compliance of the aircraft covers the compliance of the engine or propeller with the applicable engine or propeller technical specifications; 8. the instructions for continued airworthiness; 9. the operating limitations; 10. the data sheet for airworthiness and, if applicable, emissions; 11. the data sheet for noise, if applicable; 12. any other conditions or limitations prescribed for the aircraft, and if applicable the engine or propeller, in the applicable detailed technical specifications and the applicable environmental protection requirements with which the declarant declares compliance. (c) The declarant shall submit the declaration of design compliance referred to in point (b) to the Agency. Together with this declaration, the declarant shall provide to the Agency: 1. a drawing of the aircraft; 2. a detailed description of the aircraft design, including all the configurations covered by the declaration, the operating characteristics, design features and any limitations; 3. a compliance demonstration plan detailing the means by which compliance with the applicable detailed technical specifications and the applicable environmental protection requirements has been demonstrated during compliance demonstration; 4. recorded justifications of compliance obtained from the compliance activities that have been conducted according to the compliance demonstration plan; 5. where compliance is demonstrated by carrying out tests, recorded justification of the conformity of the test articles and equipment, demonstrating: (i) for the test specimen, that: (A) the materials and processes adequately conformed to the specifications for the design; (B) the constituent parts of the products adequately conformed to the drawings in the design; and (C) the manufacturing processes, construction and assembly adequately conformed to those specified in the design; (ii) that the test and measuring equipment used for the test were adequate for the test and appropriately calibrated; 6. reports, results of inspections or tests that the declarant found necessary to determine that the aircraft, and if applicable the engine or propeller, complies with the applicable detailed technical specifications and the applicable environmental protection requirements.