ludes a preapproved/ preintegrated radio (such as an 802.11 or 3G module). Compliant devices can be marketed without FCC approval. Chapter 10 Interoperability and test Declaration of Conformity as required for Part 18 (Industrial, Scientific and Medical- but includes fluorescent lighting, microwaves and similar) devices, requiring a laboratory to perform RF energy radiation testing. Certification as required for equipment that is most likely to interfere with other equipment and requires an explicit FCC ID to be labeled. O-RAN RUs fall into this category. Perform compliance testing. Formal compliance testing is done at an authorized third- party test laboratory but typically pretesting is done at development time. Regulatory testing includes development of an RF "test mode" application that radiates a predictable and repeatable pattern. Obtain formal approval for deployment by applying for an FCC Registration Number and Grantee Code from the FCC. Label conformance on the device and the reference manual. A self-approved device must be uniquely identifiable (e.g., by brand name and model) and include regulatory compliance information in the user manual. Certified equipment must include the associated FCC ID. Manufacture and/or distribute devices. Update compliance when modifications are done to the product. References 1. Brooks, F. The Mythical Man-Month; Addison-Wesley, 1975. ISBN 0-201-00650-2. 2. Available at https://www.o-ran.org/blog/2020/10/24/second-global-o-ran-alliance-plugfest-demont the-accelerated-readiness-of-multi-vendor-o-ran-compliant-network-infrastructure. 3. Available athttps://www.fcc.gov/engineering-technology/laboratory-division/general/equipment- authorization. This page intentionally left blank Differentiation by use case Advantages of the combination of the protocol and timing flexibility of the 5G standard and the software flexibility coming from an Open Radio Access Network (O-RAN)-centric imple- mentation permit O-RAN systems to be implemented in specific use-case vertical markets that w