ONC Health IT Certification Program
The ONC Health IT Certification Program is the US voluntary-but-effectively-mandatory program under which health IT is certified against federal criteria. Its Cures Act Final Rule 'Standardized API for patient and population services' criterion — commonly cited as (g)(10) — requires certified systems to expose HL7 FHIR (US Core), SMART App Launch, SMART Backend Services, and Bulk Data, with published service base URLs and transparent, non-discriminatory business terms. It defines what a compliant healthcare API must technically contain.
Regions
Industries
Each links to that industry as a scored cohort — so the question "how ready is this sector for the regime that governs it?" becomes one you can actually look at.
Implemented by these standards
A regulation is the law; a standard is the machine-readable contract that satisfies it. Almost every regime in this catalog restricts an interface rather than requiring one — where a standard exists, it is the part a provider can actually publish.