from the application of this subparagraph. (iii) Transition The Secretary shall provide for a 4-year phase-in of the application of clause (i), with clause (i) being fully applicable for specified OPD services beginning with 2028 (or in the case of an off-campus outpatient department of a provider that is a hospital described in section 1886(d)(1)(B)(v), or is located in a rural area or a health professional shortage area, beginning with 2029). (iv) Off-campus department of a provider For purposes of this subparagraph, the term off-campus outpatient department of a provider means a department of a provider (as defined in section 413.65(a)(2) of title 42, Code of Federal Regulations) that is not located— (I) on the campus (as such term is defined in such section) of such provider