# Downloads - Da Vinci Prior Authorization Support (PAS) FHIR IG v2.2.0-ballot

## Downloads

### Links

This implementation guide is web-based and is intended to be browsed online. However, for the convenience of implementers, both this implementation guide, various sub-packages of it and some of the source specifications are available for download. The following links allow you to download various parts of this implementation guide and other referenced implementation guides for local use.

* This [full IG](../full-ig.zip)
* The [resource definitions](../definitions.json.zip) from this IG for use with the FHIR validator (see below)
* The full FHIR [R4](http://hl7.org/fhir/R4/fhir-spec.zip) specifications and various [downloads](http://hl7.org/fhir/R4/downloads.html).
* The [US-Core]() specifications
* A [validator](https://fhir.github.io/latest-ig-validator/org.hl7.fhir.validator.jar) that can be used to check FHIR resource instance validity. Information on how to use the validator can be found [here](https://confluence.hl7.org/display/FHIR/Using+the+FHIR+Validator).

