• Bilateral arrangements in the form of Bilateral Aviation Safety Agreements (BASA), Working Arrangements (WA) or Memorandum of Understanding (MoU) are in place between the UK/CAA and other countries and their aviation regulators. These enable design approvals of one country to be used in the other by a process of Acceptance or Validation. The processes are specific to each BASA or WA and are detailed in Implementation Procedures.

    Details of the bilateral arrangements that the UK/CAA has in place.

    There are two processes for validation:

    1. When CAA is the Validating Authority (VA) for designs certificated by a Foreign Certification Authority (CA) seeking validation in the UK.
    2. When CAA is the Certificating Authority (CA) and assists a UK Applicant in obtaining validation by a Foreign Validating Authority (VA) - also referred to as Certification Support for Validation (CSV). 

    Validations typically fall into one of three main categories, but the details within the Implementation Procedures specific to each bilateral arrangement must be checked before submitting an application:

    Acceptance

    For simpler design approvals such as minor changes/repairs and equipment approvals the VA accepts the approval issued by the CA without any further technical or administrative involvement.

    An application is not required and no validating approval certificate is issued.

    Streamlined Validation

    Typically for simpler TCs/STCs and major changes.

    An application is required and a validation certificate is issued without the need for a technical investigation.

    Technical Validation

    For complex TCs and STCs and major changes.

    The VA may conduct a technical investigation but is generally limited to the areas of novel technology, safety significance or where there are significant differences between the certification standards of the CA and VA.

    An application is required and a validation certificate is issued.

    Administrative Validation

    This simplified process requires no technical investigation by the CAA and is used in two cases:

    1. Applications from non-UK Type Certificate Holders for the administrative amendment of UK CAA Validated Type Certificate Data Sheets (VTCDS) or Validated Type Certificate Data Sheets Noise (VTCDSN); and
    2. Applications for UK CAA validation of design approvals under the Further Working Arrangements with ANAC (Brazil), FAA (USA) and TCCA (Canada). This case is valid only until 31 December 2022.


    Eligibility

    Holders of a foreign Design Approval may apply to CAA for validation of their designs in the UK. That application should be made via their Certificating Authority (CA).

    UK Design Approval Holders may apply via the CAA for validation of their designs by a foreign Validating Authority (VA)

    For projects that are subject to Technical Validation, applications are also acceptable where a concurrent certification and validation is requested. 

    How to apply

    An application for Streamlined or Technical Validation is made using CAA Form SRG1726NR

    An application for Administrative Validation is made using CAA Form SRG1727

    The process outlined here is generic and details may vary according to the Implementation Procedures associated with the respective BASA or Working Arrangement

    Application Process (simplified) for Validation

  • Applicant
    responsible
    for   
    CAA
    responsible
    for

    Foreign
    Certificating Authority
    responsible
    for

    Activity
    Streamlined Validation
    x     Submit application for CAA validation to own National Aviation Authority as Certificating Authority (CA) including completed CAA Form SRG1726NR and the Data Pack as required by the respective Implementation Procedures.
        x

    Confirm eligibility for Streamlined Validation.

    Check completeness of data pack and provide to CAA.

      x   Verify completeness of Data Pack
      x   Issue Validation Certificate
    Technical Validation
    x     Submit application for CAA validation to own National Aviation Authority (as CA) including completed CAA Form SRG1726NR and the Data Pack as required by the respective Implementation Procedures.
        x

    Confirm criteria for Technical Validation.

    Check completeness of data pack and provide to CAA.

      x   Verify completeness of Data Pack
    x x x Achieve Technical Familiarisation
      x x Establish validation Certification Basis
      x   Produce a Validation Plan (VP) and agree the Means of Compliance (MOC) and Level of Involvement (LOI)
    x x x Determine compliance as per the VP
        x Provide statement of compliance with VA Certification Basis
      x   Issue Validation Certificate and TCDS/TCDSN as necessary
    Administrative Validation  
     x    

    Submit application for CAA administrative validation to own National Aviation Authority (as CA) including the completed CAA Form SRG1727 and either:

    • the Data Pack as required by the respective Further Working Arrangement; or
    • the data necessary for CAA to update the VTCDS/VTCDSN.
         x Confirm criteria for Administrative Validation.
    Check completeness of data and submit to CAA.

       x   Verify completeness of the Data Pack (for validation under the Further Working Arrangements) or the data necessary to update the VTCDS/VTCDSN, as applicable.
       x    Issue Validation Certificate or update the VTCDS/VTCDSN as necessary.
    Applicant
    responsible
    for
    CAA
    responsible
    for

    Foreign
    Certificating
    Authority
    responsible
    for

    Activity
    Streamlined Validation
    x     Submit application on CAA Form SRG1726NR and the Data Pack as required by the respective Implementation Procedures.
      x  

    Confirm eligibility for Streamlined Validation.

    Check completeness of data pack and provide to Validating Authority (VA)

        x Verify completeness of Data Pack
        x Issue Validation Certificate
    Technical Validation
    x     Submit application on CAA Form SRG1726NR and the Data Pack as required by the respective Implementation Procedures.
      x  

    Confirm criteria for Technical Validation.

    Check completeness of data pack and provide to VA.

      x   Verify completeness of Data Pack
    x x x Achieve Technical Familiarisation
      x x Establish validation Certification Basis
      x   Produce a Validation Plan (VP) and agree the Means of Compliance (MOC) and Level of Involvement (LOI)
    x x x Determine compliance as per the VP
      x   Provide statement of compliance with VA Certification Basis
        x Issue Validation Certificate and TCDS/TCDSN as necessary