Definition
TSO stands for Technical Standard Order, a minimum performance standard issued by aviation regulatory authorities—such as the Federal Aviation Administration (FAA) in the United States—for specific materials, parts, and appliances used on aircraft. A Technical Standard Order authorization means the equipment has met strict safety, design, and testing criteria, ensuring its suitability for certified aviation use, including drones operating in regulated airspace.
Usage
In drone manufacturing and aviation-grade component integration, a Technical Standard Order certification ensures the part—such as a GPS receiver, transponder, or communication system—meets rigorous standards for reliability and safety. Manufacturers seeking to operate in controlled airspace or alongside crewed aircraft often integrate TSO-approved components to streamline regulatory approval and ensure compliance.
Relevance to the Industry
As drones become more deeply integrated into national airspace systems (NAS), especially for complex operations like BVLOS (Beyond Visual Line of Sight), Technical Standard Order-certified components provide an extra layer of trust and regulatory readiness. TSOs are critical for drone makers targeting government contracts, enterprise deployments, or missions near airports and controlled zones.
TSOs are especially relevant for:
- Drone avionics and navigation systems
- Detect-and-avoid technology
- Remote ID and transponder hardware
- Flight termination systems
How Does a TSO (Technical Standard Order) Work?
A Technical Standard Order functions as both a guideline and certification path. Here’s how the process typically works:
- Manufacturer Design: A company designs a component (e.g., GPS module) intended for use in aviation.
- Application Submission: The company submits documentation and prototypes to the aviation authority.
- Testing & Evaluation: The part undergoes rigorous testing to verify it meets all functional and safety standards outlined in the relevant Technical Standard Order.
- Authorization Granted: If approved, the manufacturer receives a Technical Standard Order authorization, allowing the part to be installed on certified aircraft or drones.
It’s important to note that TSO authorization does not automatically grant installation approval. The part must also meet the installation standards for a specific aircraft or drone system.
Example in Use
A drone manufacturer integrates a TSO-certified Mode S transponder into its long-range surveillance drone. When applying for a BVLOS waiver near controlled airspace, the FAA notes the TSO compliance and grants expedited review, acknowledging the transponder meets trusted aviation-grade standards.
Frequently Asked Questions About TSO (Technical Standard Order)
Is a TSO authorization required for all drone components?
No, but it’s often essential for components used in regulated airspace or government applications. Many commercial drones do not require TSO-compliant parts unless specified by operational use.
Does TSO approval guarantee operational approval?
Not necessarily. Technical Standard Order certification confirms the part meets standards, but each installation must still pass overall system safety and integration assessments.
What are some common drone components with TSO equivalents?
Common TSO-covered components include GPS systems, transponders (e.g., TSO-C199 for ADS-B), barometric altimeters, and flight control units.
Can international drone companies apply for TSO in the U.S.?
Yes, foreign manufacturers can apply for FAA Technical Standard Order authorization if they meet the same requirements and testing benchmarks.
For examples of these acronyms visit our Industries page.
