; and (2) on a HIPAA X12 837P transaction or CMS 1500 form (or a successor transaction or form). . (3) Effective date The amendment made by paragraph (1) shall apply with respect to claims submitted for items and services furnished on or after January 1, 2024. (d) NAIC model Act or regulation The Secretary of Health and Human Services shall request that, not later than 6 months after the date of the enactment of this Act, the National Association of Insurance Commissioners establish a model Act or regulation designed to address the issue of hospitals inappropriately billing for items and services furnished at off-campus outpatient departments of a provider (as defined in section 1833(t)(21)(B) of the Social Security Act ( 42 U.S.C. 1935l(t)(21)(B) )) by allowing health insurance issuers and group health plans (as such terms are defined in section 2791 of the Public Health Service Act ( 42 U.S.C. 300gg–91 )) to reject such claims unless such department of a provider bills in accordance with the provisions of section 2799B–10 of such Act. The Secretary shall request that such model Act or regulation include requirements similar to those found in Colorado House Bill 18–1282.