From the Administration for Children and Families here.
The rule is delayed until 2020 and the Administration is going to “streamline” the data elements. And then it might just be delayed again based on the “streamlining”:
The Children’s Bureau published in the Federal Register on August 21, 2018 a final rule to delay implementation of the December 2016 AFCARS final rule until October 1, 2020 (83 FR 42225). However, since we plan to revise the AFCARS data points, we will revisit this implementation date to provide a timeframe to allow title IV-E agencies time to comply with the revised AFCARS data points.