{"data":{"id":"us/45-cfr-170.204","jurisdiction":"us","citation":"45 CFR 170.204","heading":"Functional standards.","body":"The Secretary adopts the following functional standards:\n(a) Accessibility—(1) Standard. Web Content Accessibility Guidelines (WCAG) 2.0, Level A Conformance (incorporated by reference in § 170.299).\n(2) Standard. Web Content Accessibility Guidelines (WCAG) 2.0, Level AA Conformance (incorporated by reference in § 170.299).\n(b) Reference source. Standard. HL7 Version 3 Standard: Context-Aware Retrieval Application (Infobutton) (incorporated by reference in § 170.299).\n(1)-(2) [Reserved]\n(3) Standard. HL7 Version 3 Standard: Context Aware Knowledge Retrieval Application. (“Infobutton”), Knowledge Request, Release 2 (incorporated by reference in § 170.299). Implementation specifications. HL7 Implementation Guide: Service-Oriented Architecture Implementations of the Context-aware Knowledge Retrieval (Infobutton) Domain, Release 1 (incorporated by reference in § 170.299).\n(4) Standard. HL7 Version 3 Standard: Context Aware Knowledge Retrieval Application (“Infobutton”), Knowledge Request, Release 2 (incorporated by reference in § 170.299). Implementation specifications. HL7 Version 3 Implementation Guide: Context-Aware Knowledge Retrieval (Infobutton), Release 4 (incorporated by reference in § 170.299).","path":["Title 45—Public Welfare","SUBTITLE A—Department of Health and Human Services","SUBCHAPTER D—HEALTH INFORMATION TECHNOLOGY","PART 170—HEALTH INFORMATION TECHNOLOGY STANDARDS, IMPLEMENTATION SPECIFICATIONS, AND CERTIFICATION CRITERIA AND CERTIFICATION PROGRAMS FOR HEALTH INFORMATION TECHNOLOGY","Subpart B—Standards and Implementation Specifications for Health Information Technology"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-45.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:21Z","sha256":"1b1956536e8fa9c1e1568edd560bd9522f2a77a8b8430d666aa7482910a809a4","source_id":"us-cfr","stale":true,"prev":"us/45-cfr-170.202","next":"us/45-cfr-170.205"},"notice":"GroundRules: Original legal text. Not legal advice."}