This document details the TCB (Telecommunication Certification Body) validation process for the US agent of record for FCC ID 2A7A6-PFC18. The validation includes verifying the agent's address as a valid physical US mailing address, confirming the agent's agreement to serve, and ensuring compliance with FCC regulations. The process involves checking official US registers, Google Maps, and the FCC FRN Search to confirm the address's validity. The document also includes evidence such as business license tax certificates, FDA registration details, and a signed letter of agreement from the US agent, Jianfeng Gao of Herland International Trading Inc. This letter confirms the agent's awareness of and agreement to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. The document serves as proof that the US agent is legally and physically located at the provided address and has agreed to serve as the agent for the grantee.