These final rules extend the time period set out in our regulations during which attorney advisors in our Office of Hearings and Appeals (OHA) may conduct certain prehearing proceedings. When the documentary record developed as a result of these proceedings warrants, they may issue decisions that are wholly favorable to the parties to the hearing in claims for Social Security or Supplemental Security Income (SSI) benefits based on disability. We are extending the date at which these rules will no longer be effective from April 1, 2000, until April 2, 2001. We are making no other changes to the substance of the rules.