FAA 8150.1 : 2017

Chapter 1 - Purpose of This Order
Chapter 2 - The TSO Program
Chapter 3 - FAA Responsibilities
Chapter 4 - AIR-100 Responsibilities
Chapter 5 - General ACO and MIDO Responsibilities
Chapter 6 - ACO Responsibilities When Processing Applications
Chapter 7 - ACO Responsibilities for Deviations
Chapter 8 - ACO Responsibilities for Non-TSO Functions
Chapter 9 - Additional ACO Responsibilities
Appendix A - Acronyms and Definitions
Appendix B - Related Publications and How to Get Them
Appendix C - Sample Letter of TSO Authorization (TSOA)
Appendix D - Sample Letter of TSO Design Approval (LODA)
Appendix E - Accepted Non-TSO Functions
Appendix F - Sample Denial Letter for TSOA/LODA Application
Appendix G - Format and Guidance for the Preparation of a TSO
Appendix H - Deviation Delegation Authority to ACO
Appendix I - Administrative Information
Appendix J - FAA Form 1320-19, Directive Feedback Information

Gives guidance on evaluating and issuing TSOAs and LODAs for aviation-related articles.