DEFSTAN 05-123(PT1)/2(2004) : 2004

Introduction
SECTION 0 GENERAL REQUIREMENTS
1 Scope
2 Warning
3 Normative References
4 Definitions
5 Abbreviations
SECTION 1 DESIGN APPROVED ORGANISATIONS SCHEME
6 Design Approved Organisations Scheme
   6.1 General
   6.2 Approvals
   6.3 Application For Inclusion In The Scheme
   6.4 Design Organisations
   6.5 Conditions Of The Scheme
   6.6 List Of Contractors In The Design Approved
        Organisations Scheme
SECTION 2 DESIGN AND DEVELOPMENT
7 Responsibility For Design And Development
   7.1 General
   7.2 Responsibilities Of A Contractor
   7.3 Sub-Contractors
   7.4 Designs Using Government Furnished Assets
   7.5 Relationship Between The Contractor And MOD
SECTION 3 CERTIFICATION OF DESIGN
8 Certification Of Design
   8.1 General
   8.2 Requirements
   8.3 Submission And Acceptance
APPENDIX A PARTICULAR REQUIREMENTS FOR AIRCRAFT
ANNEX A1 CERTIFICATE OF DESIGN FOR AIRCRAFT
ANNEX A2 CERTIFICATE OF DESIGN FOR USE BY ORGANISATIONS
         APPROVED FOR THE DESIGN OF MODIFICATIONS AND
         SPECIAL INSTALLATIONS IN AIRCRAFT
APPENDIX B PARTICULAR REQUIREMENTS FOR COMPONENTS, EQUIPMENT
           OR SYSTEMS
ANNEX B1 CERTIFICATE OF DESIGN FOR A COMPONENT/EQUIPMENT/SYSTEM
APPENDIX C PARTICULAR REQUIREMENTS FOR GUIDED WEAPONS
ANNEX C1 CERTIFICATE OF DESIGN FOR GUIDED WEAPONS
SECTION 4 MATERIAL SPECIFICATION
9 Contractor's Material Specifications (Withdrawn)
SECTION 5 REQUALIFICATION AND PRODUCTION TESTING
10 The Requalification And Subsequent Production Testing Of
   Components And Equipment
   10.1 Introduction
   10.2 General
   10.3 Requirements Applicable to The Circumstances Defined
        At Clauses 10.1.3 a. and 10.1.3 b. Above
   10.4 Requirements When The MOD Changes Manufacturer
        (Clause 10.1.3 C. Above)
   10.5 Special Arrangements For Materiel Containing Explosives
SECTION 6 AIRCRAFT CONTRACTORS RESPONSIBILITIES
11 Additional Responsibilities Of Aircraft Contractors For
   Development Of Aircraft Systems, Equipment And Installations
   11.1 General
   11.2 Proposals For Equipment Development
   11.3 Interface Requirements
   11.4 Design Of Particular Systems And Equipment Installation
SECTION 7 AIRCRAFT REPAIR SCHEMES
12 Approval Of Aircraft Repair Schemes
   12.1 General
   12.2 Service Approved Repair Scheme
   12.3 Design Organisation Repair Schemes

Specifies the responsibilities of contractors and contains the technical procedures for the establishment and maintenance of airworthiness. Matters relating to the safety of guided weapons are also dealt with.