马上注册，结交更多电磁兼容工程师，享用更多功能，让你轻松玩转社区。
您需要 登录 才可以下载或查看，没有账号？注册会员
×
FCC标准查询
FCC标准查询
About the Code of Federal Regulations
The Code of Federal Regulations (CFR) annual edition is the codification of the general and permanent rules published in the Federal Register by the departments and agencies of the Federal Government. It is divided into 50 titles that represent broad areas subject to Federal regulation. The 50 subject matter titles contain one or more individual volumes, which are updated once each calendar year, on a staggered basis. The annual update cycle is as follows: titles 1-16 are revised as of January 1; titles 17-27 are revised as of April 1; titles 28-41 are revised as of July 1; and titles 42-50 are revised as of October 1. Each title is divided into chapters, which usually bear the name of the issuing agency. Each chapter is further subdivided into parts that cover specific regulatory areas. Large parts may be subdivided into subparts. All parts are organized in sections, and most citations to the CFR refer to material at the section level. Read More Click here to access the e-CFR (Electronic Code of Federal Regulations), the regularly updated online version of the CFR.
| 
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
千斤顶
显身卡
