Borrowing from the Benton Foundation’s summary…

As required by the Restoring Internet Freedom Order, with this Public Notice, the Consumer and Governmental Affairs Bureau, in coordination with the Wireline Competition Bureau, establishes a portal for Internet service provider (ISP) transparency disclosures. The Order becomes effective on June 11, 2018, and the revised transparency rule requires ISPs to publicly disclose information about their service in one of two ways – by providing the disclosure on a publicly available, easily accessible website or by submitting it to the Federal Communications Commission for posting. On May 29, 2018, this portal will be available for both ISPs submitting their disclosures to the FCC and consumers searching for any disclosures submitted to the FCC.

It seems likely to me that most providers would simply use their own website to disclose information about their service – but this portal is available too. It would interesting to see if some of the providers use their website to disclose some info and this portal to disclose other info.