On June 14 the FCC WRC–12 Implementation Report and Order was published in the US Federal Register
The Federal Communications Commission has implemented allocation changes from the World Radiocommunication Conference (Geneva, 2012) (WRC–12) and updated its service rules. The Commission took this action to conform its rules, to the extent practical, to the decisions that the international community made at WRC–12.
Among the changes are:
• Part 97 – Allocation of 472–479 kHz and 135.7–137.8 kHz bands to the Amateur Service on a secondary basis.
• Part 15 – § 15.113 Power line carrier systems
An electric power utility entity shall not operate a new or modified power line carrier (PLC) system in the 135.7–137.8 kHz and/or 472–479 kHz bands if a previously coordinated amateur station pursuant to § 97.301(g)(2) of this chapter is located within one kilometer of the transmission lines conducting the PLC signal.
• Part 80 to authorize radio buoy operations in the 1900–2000 kHz band under a ship station license.
Regarding the implementation date the Report and Order says:
Effective July 14, 2017, except for amendments to §§ 97.3, 97.15(c), 97.301(b) through (d), 97.303(g), 97.305(c), and 97.313(k) and (l), which contain new or modified information collection requirements subject to the Paperwork Reduction Act of 1995 (PRA), Public Law 104–13, that are not effective until approved by the Office of Management and Budget (OMB). The Commission will publish a document in the Federal Register announcing the effective date once OMB approves.
Read the document at