1. Short title This Act may be cited as the Site-based Invoicing and Transparency Enhancement Act or the SITE Act . 2. Ensuring fair billing practice for items and services furnished by off-campus hospital locations (a) Promoting Medicare site-Neutral payments Section 1833(t)(21) of the Social Security Act ( 42 U.S.C. 1395l(t)(21) ) is amended— (1) by redesignating subparagraph (E) as subparagraph (G); and (2) by inserting after subparagraph (D) the following new subparagraphs: (E) Sunset of certain exceptions The provisions of clauses (ii) and (iv) of subparagraph (B) shall not apply with respect to applicable items and services furnished on or after January 1, 2025. (F) Special payment rule for non-applicable items and services furnished at certain off-campus dedicated emergency departments (i) In general In the case of covered OPD services furnished by an applicable dedicated emergency department during 2025 or a subsequent year, the payment amount for such service that would otherwise be determined under this subsection (without regard to the application of this subparagraph) for such year shall be reduced by 30 percent. (ii) Applicable dedicated emergency department In clause (i), the term applicable dedicated emergency department means a dedicated emergency department (as defined in section 489.24(b) of title 42 of the Code of Federal Regulations) that— (I) is an off-campus outpatient department of a provider (as defined in subparagraph (B))