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21L.A.24 Application for a type certificate

Annex Ib · Regulation (EU) No 748/2012 · EAR revision 27 Nov 2025

IRImplementing rule

21L.A.24Application for a type certificate

(a)An application for a type certificate shall be made in a form and manner established by the Agency.

(b)An application for a type certificate shall include as a minimum:

1.a justification that the application is within the scope as established in point 21L.A.21;

2.preliminary descriptive data of the product, the intended use, and the kind of operation of the product for which certification is requested;

3.a proposal for the type-certification basis and the applicable environmental protection requirements, prepared in accordance with the requirements and options specified in points 21L.B.43 and 21L.B.45;

4.a compliance demonstration plan detailing the means and methods of compliance that shall be updated by the applicant when there are changes to the certification project that affect points (1) to (3) or any changes to the means and methods of compliance.

(c)An application for a type certificate shall remain valid for 3 years. In case a type certificate has not been issued within this period, a new application shall be made in accordance with points (a) and (b).

IR · 21L.A.24 — Regulation (EU) No 748/2012 · Regulation (EU) 2022/1358 · Initial Airworthiness Easy Access Rules · EAR revision 27 Nov 2025

AMCAcceptable means of compliance

AMC1 21L.A.24(a)Application for a type certificate

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FORM AND MANNER The applicant should file an application using the web-based ‘EASA Applicant Portal’ or the application form for a type certificate, which may be downloaded from the EASA website. The form should be completed for a type certificate in accordance with the instructions embedded at the bottom of the application form, and sent to the Agency by fax, email or regular mail following the information provided on the EASA website.

AMC · AMC1 21L.A.24(a) — Regulation (EU) No 748/2012 · ED Decision 2023/013/R · Initial Airworthiness Easy Access Rules · EAR revision 27 Nov 2025

AMCAcceptable means of compliance

AMC1 21L.A.24(b)(4)Application for a type certificate

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COMPLIANCE-DEMONSTRATION PLAN The compliance-demonstration plan is a document that allows the applicant and EASA to manage and control the evolving product type design, as well as the process of compliance demonstration by the applicant and its verification by EASA when required. In particular, the following information should typically be expected: Identification of the relevant personnel that make decisions affecting airworthiness and environmental protection, and that will interface with EASA during the critical design review prior to the issue of the flight conditions and during the first-article inspection, unless otherwise identified to EASA (e.g. within the design organisation procedures). A project schedule, including major milestones. Subcontracting arrangements for design, environmental protection and/or production. As requested under Point 21L.A.24(b)(2), ‘preliminary descriptive data of the product, the intended use, and the kind of operation of the product for which certification is requested’ Note: An example of an Aeroplane General Description is provided in ABCD-GD-01-00 – Aeroplane General Description – 17.02.16 – v1 (1). An overview of the following: architecture, functions, systems; dimensions, design weights, payloads, design speeds; engines and power/thrust rating; materials and technologies; cabin configuration aspects; options (e.g. weight variants, power/thrust rating variants, optional avionics equipment items, brake options, tyre options, floats, skids); operating speed limitations; service ceiling, maximum airfield elevation; limit load factors; number of passengers, payload, range; weight and centre-of-gravity (CG) envelope and fuel loading; performance; environmental envelope; runway surface conditions. As requested under Point 21L.A.24(b)(3), ‘a proposal for the type-certification basis and the applicable environmental protection requirements, prepared in accordance with the requirements and options specified in points 21L.B.43 and 21L.B.45’ The proposed certification basis should include applicable certification specifications, proposed special conditions, proposed equivalent safety findings, as well as a proposed ‘elect to comply’ and proposed deviations, as applicable. The applicant should provide detailed information about the proposed means of compliance with the applicable airworthiness and environmental protection requirements identified under point 21L.A.24(b)(3). The information provided should be sufficient for EASA to easily determine the means of compliance used. This should include the following: a compliance checklist addressing each requirement, the proposed means of compliance (see Appendix A to AMC1 21L.A.24(b) below for the relevant codes), and the related compliance document(s); identification of industry standards (Society of Automotive Engineers (SAE), American Society for Testing and Materials (ASTM), European Organisation for Civil Aviation Equipment (EUROCAE), AeroSpace and Defence Industries Association of Europe (ASD), etc.), methodology documents, handbooks, technical procedures, technical documents and specifications specified in the type certificate data sheet, certification memoranda, policy statements, guidance material, etc., that are proposed in the demonstration of compliance; when the compliance demonstration involves testing (point 21L.A.25(c) and (d)), a description of the ground- and flight-test article(s), test method(s), test location(s), test schedule, test house(s), test conditions (e.g. limit load, ultimate load), as well as of the intent/objective(s) of the testing; and when the compliance demonstration involves analyses/calculations, a description/ identification of the tools (e.g. name and version/release of the software programs) and methods used, the associated assumptions, limitations and/or conditions, as well as of the intended use and purpose; furthermore, the validation and verification of such tools and methods should be addressed. For every aspect mentioned above, the applicant should clearly identify whether the demonstration of compliance involves any method (analysis or test) which is novel or unusual for the applicant. In addition, the applicant should identify any deviations from the published AMC to the relevant CSs.

AMC · AMC1 21L.A.24(b)(4) — Regulation (EU) No 748/2012 · ED Decision 2023/013/R · Initial Airworthiness Easy Access Rules · EAR revision 27 Nov 2025

AMCAcceptable means of compliance

AMC2 21L.A.24(b)(4)Application for a type certificate

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UPDATES TO THE COMPLIANCE-DEMONSTRATION PLAN It is acceptable to provide an initial compliance-demonstration plan that is not fully complete, e.g. due to schedule constraints of the design, analysis and testing activities. The applicant should provide information in the compliance-demonstration plan that is provided to EASA about the applicable certification specifications and the environmental protection requirements (e.g. for aircraft noise: in terms of the applicable chapter of Volume I of Annex 16 to the Chicago Convention and the related limits). Furthermore, even if the initial compliance-demonstration plan is complete, it may be necessary to amend it throughout the duration of the project. The compliance-demonstration plan should be updated and resubmitted to EASA during the certification project. In particular, updates to the following elements should be provided: any complementary information that was not included in the initial compliance-demonstration programme; any change that may have an impact on the certification basis or means of compliance; any change to the intended use or kind of operation of the product; a change to the key characteristics of the product such as but not limited to any declared limits that are intended to be recorded in the type certificate data sheet (TCDS); any change to the initial type-certification basis or environmental protection requirements, as applicable to the product, regardless whether the change is initiated by EASA or by the applicant; any change to the proposed means of compliance, including its/their methodology; any relevant change to the design organisation personnel (and design organisation (DO) suppliers) that are involved in the project; and any change to the project schedule affecting planned Agency verification activities under point 21L.B.46.

AMC · AMC2 21L.A.24(b)(4) — Regulation (EU) No 748/2012 · ED Decision 2023/013/R · Initial Airworthiness Easy Access Rules · EAR revision 27 Nov 2025

GMGuidance material

GM1 21L.A.24(c)Application for a type certificate

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PERIOD OF VALIDITY OF AN APPLICATION FOR A TYPE CERTIFICATE An extension of the 3-year validity period for the initial application for a type-certificate is not possible. After the 3-year validity period of the application for a type certificate, the new application made in accordance with points (a) and (b) of point 21L.A.24 will be again valid for a period of 3 years.

GM · GM1 21L.A.24(c) — Regulation (EU) No 748/2012 · ED Decision 2023/013/R · Initial Airworthiness Easy Access Rules · EAR revision 27 Nov 2025

All rules in SECTION A - TECHNICAL REQUIREMENTS

Consolidated from the EASA Easy Access Rules (revision 27 Nov 2025, extracted 17 Aug 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.

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