# title
Secure US Drug Formulary Server Capability Statement

# publisher
HL7 International - US Realm Steering Committee

# description
This Capability Statement describes the capabilities of the US Drug Formulary Server which is responsible for providing responses to the US Drug Formulary queries submitted by registered Consumer Applications. This version of the Formulary Server requires a Plan Member to grant access to the drug formulary information that is applicable to their current prescription drug plan coverage. The complete list of FHIR profiles, RESTful operations, and search parameters supported by US Drug Formulary Server are defined.

# rest[].documentation
The US Drug Formulary Server **SHALL**:1. Support the US Drug Formulary CoveragePlan (List) and FormularyDrug (MedicationKnowledge) resource profile.1.  Implement the RESTful behavior according to the FHIR specification.1. Return the following response classes:   - (Status 400): invalid parameter   - (Status 401/4xx): unauthorized request   - (Status 403): insufficient scope   - (Status 404): unknown resource   - (Status 410): deleted resource.1. Support json source formats for all US Drug Formulary interactions.The US Drug Formulary  Server **SHOULD**:1. Support xml source formats for all US Drug Formulary interactions.

# rest[].security.description
1. See the [General Security Considerations](security.html) section for requirements and recommendations.1. A server **SHALL** reject any unauthorized requests by returning an `HTTP 401` unauthorized response code.