The Secretary adopts the following application programming interface (API) standards and associated implementation specifications:

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(a)(1) Standard. HL7® Fast Healthcare Interoperability Resources (FHIR ®) Release 4.0.1 (incorporated by reference in § 170.299).

(2) Implementation specification. HL7 FHIR® US Core Implementation Guide STU 3.1.1 (incorporated by reference in § 170.299).

(3) Implementation specification. HL7 SMART Application Launch Framework Implementation Guide Release 1.0.0, including mandatory support for the “SMART Core Capabilities” (incorporated by reference in § 170.299).

(4) Implementation specification. FHIR Bulk Data Access (Flat FHIR) (v1.0.0: STU 1), including mandatory support for the “group-export” “OperationDefinition” (incorporated by reference in § 170.299).

(b) Standard. OpenID Connect Core 1.0, incorporating errata set 1 (incorporated by reference in § 170.299).

[85 FR 25941, May 1, 2020, as amended at 85 FR 70082, Nov. 4, 2020]