• Certification directorate
• Airworthiness Directives
• Experts
• Product certification
• Application forms

• Permit to fly
• Internal working procedures
• Specific Airworthiness Specifications
• Certification - FAQ

• Design Organisations
• Production Organisations
• Continuing Airworthiness Org.
• FCL Organisations
• Third Country Operators
• ATM/ANS Organisations

• Agency Decisions
• Rulemaking Regulations
• Fees and charges Reg.
• Certification specifications
• e-examination
•  Official Publication

• Programme and Planning
• TORs, NPAs & CRDs
• Opinions
• Consultative bodies

Alternative Procedures to Design Organisation Approval (ADOA)

• Relevant legislation
• Lists of Alternative Design Organisation Approvals (ADOAs)
• Application forms and other forms for ADOAs
• Fees & Charges for ADOAs

Relevant legislation

• Relevant section of Regulation: Articles 5.2(e),18(d),20.2(b)(i),53.1

Implementing Rule:

• Relevant section of Regulation: Articles 1(h) & 8
• Annex I to Regulation (EC) No 748/2012 - Part 21 - Certification of aircraft and related products, parts and appliances, and of design and production organisations 
  
  • Relevant section of Part 21: Articles 21.A.14(b), 21.A.112B(b), 21.A.432B(b), 21.A.602B(b)(2)

Acceptable Means of Compliance (AMC) and Guidance material (GM)

• ED Decision 2012/020/R of 17/10/2012 on acceptable means of compliance and guidance material for the airworthiness and environmental certification of aircraft and related products, parts and appliances, as well as for the certification of design and production organisations ("AMC and GM to Part 21"), and later amendments.
  
  • Relevant section of AMC & GM document:
    • Subpart B - 'AMC 21A.14(b) Alternative Procedures'
    • Subpart E - 'GM 21A.112B Demonstration of capability for supplemental type-certificate cases'
    • Subpart O - 'AMC 21A.602B(b)(2) Procedures for ETSO authorisations'

Templates for manual of procedures:

• TC/STC/Repair case: see "Model STC" and "Change Repair Dossier"
• ETSOA case: see "Model ETSOA"

Lists of Alternative Design Organisation Approvals

• List of all EASA ADOA approvals in accordance with Part 21 (updated 06/06/2013)

Application forms for ADOAs

Following ED Decision 2005/05/C of 23/05/2005, certain application forms have been established.

• See Application forms page (relevant application form: EASA Form 81 for initial application and for approval of changes to procedures).

Important note:
Any change to the content of the EASA finding of compliance (e.g. change of company name, company address, description of scope of work, procedures references, title or issue/date) shall require an application via this form together with the updated procedures.

Fees & Charges for ADOAs

The European Aviation Safety Agency is applying fees for its certification activities since 1 June 2005.
Starting with the 1st of June 2007, a new scheme of fees is detailed in the 'Fees & Charges' (Commission Regulation (EC) No 593/2007) which was adopted by the European Commission in the week of 31 March 2007 and published in the EU Official Journal on 1 June 2007.

• See Regulations / Fees & Charges page (relevant section of the Commission Regulation (EC) No 593/2007: Annex, Paragraph 2 of Part II).