---
title: Document Change Log
slug: rtpb-pbm-payers/guide/document-change-log
docTags: 
createdAt: 2026-06-11T13:19:33.632Z
---

:::ExpandableHeading
## 2026-09-29

| **Sec. Title**                  | **Change Description**                                                                                                                                                                                                                                                               |
| ------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| RTPB Response Best Practices    | Updated Alternatives and Pricing best practices                                                                                                                                                                                                                                      |
| Element Details - StateProvince | Added a note clarifying that Surescripts may populate the StateProvince field with "UN" (Unknown) when a state/province value is not provided by the source EHR. This supports translation from PMBC, where StateProvince is optional, to RTPB v13, where StateProvince is required. |
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