These Regulations amend the Social Security and Child Support (Decisions and Appeals) Regulations 1999 (S.I.1999/991) (“the Decisions and Appeals Regulations”) to enable the Secretary of State to require a person to apply for a social security decision to be revised pursuant to section 9 of the Social Security Act 1998 before the person is permitted to appeal to the First-tier Tribunal (see new regulation 3ZA of the Decisions and Appeals Regulations, as inserted by regulation 4(3) of these Regulations).