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Technical Standard Order (TSO) Authorization

Receiving a TSO authorization is approval to manufacture an article that may be installed on an aircraft only after showing that the article meets the specific airworthiness requirements (certification basis) of a particular aircraft model. In other words, receiving a TSO authorization means that an article meets a minimum performance requirement independent of the article's intended installation on an aircraft. A separate FAA approval is required to install the article on an aircraft.

Contact your local FAA office to request an application for TSO Authorization.

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This page was originally published at: https://www.faa.gov/aircraft/air_cert/design_approvals/tso/tso_auth/