美国FCC标准查询相关诉述 Title 47 - Telecommunication - Subchapter A - Part xxx

美国GPO（Government Printing Office)的联邦数字系统（ FDsys ）提供了从联邦政府所有三个部门免费在线访问官方刊物，其中包括Code of Federal Regulations (CFR) Title 47 - Telecommunication 通信的相关电子产品的，美国FCC认证的常见电磁兼容标FCC 47 CFR Part 15与FCC 47 CFR Part 18。
下面网址是美国FCC网站强制规定执行的标准
http://www.fcc.gov/encyclopedia/rules-regulations-title-47
http://www.ecfr.gov/cgi-bin/text-idx?c=ecfr&tpl=/ecfrbrowse/Title47/47cfrv1_02.tpl

About FDsys（联邦数字系统）- 在此网站可以免费查询到美国最新的电磁兼容等相关标准
GPO’s Federal Digital System (FDsys) provides （www.gpo.gov/fdsys）free online access to official publications from all three branches of the Federal Government. Through FDsys, you are able to:
Search for documents and publications — FDsys provides advanced search capabilities and the ability to refine and narrow your search for quick access to the information you need.
Browse for documents and publications — FDsys offers browsing by collection, Congressional committee, date, and Government author.
Access metadata about documents and publications — FDsys provides information about Government publications in standard XML formats.
Download documents and publications in multiple renditions or file formats — With FDsys, users can download a single file or download content and metadata packaged together in a compressed file.
FDsys is:
A Content Management System
FDsys provides free online access to official Federal Government publications and securely controls digital content throughout its lifecycle to ensure content integrity and authenticity.
A Preservation Repository
The repository guarantees long-term preservation and access to digital Government content. To meet this critical need for permanent access to Federal Government information, FDsys follows archival system standards.
An Advanced Search Engine
FDsys combines modern search technology with extensive metadata creation to ensure the highest quality search experience.
Discover the Benefits of FDsys
Access is free.
About 50 different collections of Federal Government information are available.
FDsys is easy to use.
FDsys offers authentic, digitally signed PDF documents.
Information is preserved for permanent public access.
Search multiple publications at once.
Conduct complex searches.
Narrow, sort, and filter search results.
Access documents in multiple file formats.
Access metadata in standard XML formats.
Browse by collection, Congressional committee, date, and Government author.
Utilize a searchable online help system.
Find out more...
Find out more about performing searches in FDsys through online help.
Find out more about browsing for documents and publications in FDsys through online help.
Find out more about what's available through FDsys.

FDsys系统中的标准内容更新记录内容如下网址链接：
由联邦注册办公室（OFR）签署，美国国家档案和记录管理局（NARA）出版
http://www.gpo.gov/fdsys/browse/collection.action?collectionCode=CPD

美国FCC电磁兼容标准免费下载网站
在下面的网站选择最新的年份
http://www.gpo.gov/fdsys/browse/collectionCfr.action?collectionCode=CFR

选择相应年份后，点击“Go”。如今年为2013年，选择Year 2013进入
如果没有相应标准的话，说明今年未更新，请选择上一年标准
http://www.gpo.gov/fdsys/browse/collectionCfr.action?selectedYearFrom=2013

进入后如下图所示

CODE OF FEDERAL REGULATIONS (ANNUAL EDITION)
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. About the Code of Federal Regulations (annual edition).

美国联邦法规法典（年版）
美国联邦法规（CFR）年度版是由部门和联邦政府机构在联邦登记册出版的一般和永久的规则编纂。它分为50种，代表受联邦监管的广泛领域。50主题名称包含一个或多个个别卷，这是每年更新一次，交错的基础上。年度更新周期如下：标题1-16修改为一月一日；职称17-27修改为四月一日；职称28-41是修订于七月一日；和标题42-50修改为十月一日。每个标题分章，通常承担发行机构的名称。每一章又分为部分覆盖特定监管区域。大部分可分为部分。所有的部件都是有组织的部分，和大多数引文指科级材料CFR。关于联邦规范（年版）。

目前为止美国FCC Title 47 - Telecommunication法规最新为 2013版 http://www.gpo.gov/fdsys/pkg/CFR ... 13-title47-vol1.pdf

https://www.emc.wiki/thread-4728-1-1.html