---
title: Implementation Readiness Checklist
slug: xdr/guide/implementation-readiness-checklist
docTags: 
createdAt: 2026-07-30T21:09:39.185Z
---

Use this checklist to confirm your implementation covers the core capabilities described in this guide before certification. It summarizes requirements and expectations detailed elsewhere; the referenced sections are authoritative.

- [ ] Establish outbound XDR connectivity to Surescripts using mutual TLS ([Connectivity and Mutual TLS (mTLS)](docId\:jfGzRl2J_PROSTtsoVZa5)).
- [ ] Receive inbound XDR messages and DSNs, and return valid synchronous Provide and Register Document Set-b responses ([Sending Flow Overview](docId\:xZ0MTs_W6FVT5WxkvD-Q0), [Sending the Message Response](docId\:XyQrOSGPZ8458uzH0p8sU)).
- [ ] Construct XDR messages with the required addressing, metadata, and attachments ([Sending XDR Messages to Surescripts](docId\:xZ0MTs_W6FVT5WxkvD-Q0) ).
- [ ] Track delivery status independently from the synchronous response, using DSNs as the signal of final delivery ([Delivery Status Notification (DSN)](docId\:daGa7Uw8ataRiYlZ3RtU9), [Delivery Status Notifications](docId\:zA3pMlbsxejAs5vduvf55)).
- [ ] Process multiple DSNs for multi-recipient messages, including mixed outcomes ([Multiple Recipients](docId\:daGa7Uw8ataRiYlZ3RtU9), [Message Structure](docId\:XyQrOSGPZ8458uzH0p8sU)).
- [ ] Publish and maintain your Direct addresses in the Surescripts Directory, and support sending to valid addresses that are not listed ([Receiving Flow Overview](docId\:XyQrOSGPZ8458uzH0p8sU), [Directory Management](docId\:zA3pMlbsxejAs5vduvf55)).
- [ ] Distinguish SOAP faults from XDR application-level errors, and produce well-formed error responses ([Error Management](docId\:zA3pMlbsxejAs5vduvf55)).
- [ ] Support the required attachment handling, including display/download and removed-attachment notification ([Clinical Attachments](docId\:zA3pMlbsxejAs5vduvf55), [ACR C.205](docId\:WsFITp7Dv6u1yRn7zBxD8)).
- [ ] Meet the applicable Application Certification Requirements ([Application Certification Requirements](docId\:WsFITp7Dv6u1yRn7zBxD8)).
- [ ] Complete identity proofing and trust-framework obligations ([DirectTrust Trust Framework and Flow-Down Terms](docId\:pmVq7Uy_7YMaKt3XdRoA1)).