47 CFR是什么意思呢？

相信很多人都知道FCC part 15B、FCC part 15C，这两个分别是美国FCC SDOC普通电子产品、FCC ID无线通信产品的FCC标准。
联邦法规电子守则
Electronic Code of Federal Regulations
其中，他们完整的写法是 47 CFR, Part 15, Subpart B，47 CFR, Part 15, Subpart C

Electronic Code of Federal Regulations
Electronic Code of Federal Regulations

e-CFR data is current as of March 12, 2020 Title Volume Chapter Browse Parts Regulatory Entity Title 47 Telecommunication 1 I 0-19 FEDERAL COMMUNICATIONS COMMISSION 2 20-39 3 40-69 4 70-79 5 80-199 II 200-299 OFFICE OF SCIENCE AND TECHNOLOGY POLICY AND NATIONAL SECURITY COUNCIL III 300-399 NATIONAL TELECOMMUNICATIONS AND INFORMATION ADMINISTRATION, DEPARTMENT OF COMMERCE IV 400-499 NATIONAL TELECOMMUNICATIONS AND INFORMATION ADMINISTRATION, DEPARTMENT OF COMMERCE, AND NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION V 500-599 THE FIRST RESPONDER NETWORK AUTHORITY