Responsibilities of a U.S. agent The U.S. agent must either reside in the U.S. or maintain a place of business in the U.S. The U.S. agent cannot use a post office box as an address. The U.S. agent cannot use an answering service. They must be available to answer the phone or have an employee available to answer the phone during normal business hours. The responsibilities of the U.S. agent are limited and include: assisting FDA in communications with the foreign establishment, responding to questions concerning the foreign establishment's devices that are imported or offered for import into the United States, assisting FDA in scheduling inspections of the foreign establishment and if FDA is unable to contact the foreign establishment directly or expeditiously, FDA may provide information or documents to the U.S. agent, and such an action shall be considered to be equivalent to providing the same information or documents to the foreign establishment. Please note that the U.S. agent has no responsibility related to reporting of adverse events under the Medical Device Reporting regulation (21 CFR Part 803), or submitting 510(k) Premarket Notifications (21 CFR Part 807, Subpart E).
QSR820审核的可能的结果 NAI（审核无483直接通过） VAI（审核有483，是一般不符合） OAI（审核有483，是严重不符合） Warning Letter 警告信（企业必须在规定期限回复，有可能需要审核进行验证） Import Alert 进口禁令（企业产品到美国海关会被自动扣留，进入DWPE程序）
美国市场要求：FDA注册认证 器械法规—FDA注册 • I类(CLASS I)产品，绝大部分只需进行登记(LISTING)和实施GMP规范，产品即可进入美国市场。其中不少产品连GMP也豁免， 个别产品则需向FDA递交“上市前通知” ，即510（K）。 • II 类(CLASS II)产品，在进行设施登记和器械注册后，还需实施GMP和递交“上市前通知” 即510(K) 申请。个别产品510（K）豁免。
选择了SUNGO作为美代的您可以享受到如下星级服务： 1. FDA注册的日常维持，更新； 2. FDA新动态的时间告知及建议； 3. 随时为您提供与FDA注册和上市后监管等相关的事务的处理意见； 4.可代表您回答您美国客户的相关FDA问题（英文邮件，英文电话会议均可）； 5.接受FDA验厂时，以优惠的价格提供QSR820、审核经验传授及全程英语陪审 6.选择有能力进行QSR820（包括美国法规知识、国内审核经验和英语沟通能力）的美国代理人！ 7.在完成注册后，启动QSR820体系，按照美国法规的要求实施管理，有备无患！ 8.实在没有满足第2条又被抽查到，立即联系我们，为你提供五天方案审查！