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21-46 - Technical Standard Order Program

Date Issued
September 30, 2010
Responsible Office
AIR-120,  Aviation Safety - Aircraft Certification Service, Aircraft Engineering Division
Description

This advisory circular (AC) explains the technical standard order (TSO) process outlined in Title 14 of the Code of Federal Regulations (14 CFR), part 21, Subpart O, for manufacturers producing articles and appliances under a TSO authorization (TSOA) or letter of TSO design approval (LODA).