Title IV, SEC. 4000. REFERENCES IN TITLE. (a) Amendments to Social Security Act. Except as otherwise specifically provided, whenever in this title an amendment is expressed in terms of an amendment to or repeal of a section or other provision, the reference shall be considered to be made to that section or other provision of the Social Security Act. (b) References to OBRA. In this title, the terms ``OBRA 1986'', ``OBRA 1987'', ``OBRA 1989'', ``OBRA 1990'', and ``OBRA 1993'' refer to the Omnibus Budget Reconciliation Act of 1986 (Public Law 99 509), the Omnibus Budget Reconciliation Act of 1987 (Public Law 100 203), the Omnibus Budget Reconciliation Act of 1989 (Public Law 101 239), the Omnibus Budget Reconciliation Act of 1990 (Public Law 101 508), and the Omnibus Budget Reconciliation Act of 1993 (Public Law 103 66), respectively.