This is Social Security's description of a Notice of Proposed Rule-Making (NPRM) that the agency has sent to the Office of Management and Budget (OMB):
We are proposing several revisions to our medical evidence rules. The proposals include redefining several key terms related to evidence, explaining what is and is not evidence, revising our list of acceptable medical sources (AMS), revising how we consider and articulate our consideration of medical opinions and prior administrative medical findings, revising who can be a medical consultant (MC) and psychological consultant (PC), revising our rules about treating sources, and reorganizing our evidence regulations for ease of use. These proposed revisions conform with the Bipartisan Budget Act of 2015 (BBA), reflect changes in the national healthcare workforce and in the manner that individuals receive primary medical care, simplify and reorganize our rules to make them easier to understand and apply, allow us to continue to make accurate and consistent decisions, and emphasize the need for objective medical evidence in disability and blindness claims.OMB has to approve the NPRM before it is published in the Federal Register. The public can then comment upon it. The agency must "consider" the comments but the "consideration" is generally limited to giving a brief explanation of why they don't agree with the comment unless the comment has to do with something as minor as punctuation. After that process is finished, the final regulation goes back to OMB and then into the Federal Register again after which it goes into effect. However, we'll have a new President and Commissioner before this happens.