We know that a regulation hold has been placed by the Biden Administration until they can review their positions on proposed regulations, but it is highly unusual that no FR notices have appeared since Inauguration Day, January 20, 2021. Many FR notices address issues other than regulations, including meeting notices, guidance announcements, collections of information submitted to OMB, etc., so this is highly unusual and unprecedented.
We will keep an eye on the FR prepublication page to see when the floodgates open up again.