We are issuing this direct final rule to make technical corrections to our title II regulations affecting the Federal Old-Age, Survivors and Disability Insurance programs. This rule amends our regulations by correcting a cross-reference affecting entitlement to mother's and father's benefits, to include alternatives to the 9-month duration of marriage requirement. We are deleting an out-of-date cross- reference to the definition of "substantially all." In its place, we are restoring the regulatory definition for "substantially all" that had been inadvertently deleted to show if a grandchild or stepgrandchild is dependent based on our support requirements. Also, we are revising headings in six of our regulations to conform to plain language provisions of Executive Order (E.O.) 12866, as amended. We are also amending one of our regulations for clarity and to correct a typographical error.