---
title: Application Certification Requirements (ACR) Summary
slug: eprescribing/guide/application-certification-requirements-acr-summary
docTags: 
createdAt: 2026-06-11T13:26:23.679Z
---

# ACR Overview

This section provides a consolidated view of all Application Certification Requirements (ACRs) that must be met to support compliant E-Prescribing transactions. It serves as a quick reference to help implementers identify required capabilities, validate conformance, and ensure their application satisfies certification criteria before production use.

# Quick Links

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[Numeric Representation (S.206)](docId\:m0LGUmzYexy4YwbGSaMpo)
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:::LinkArrayItem{headerType="NONE" docId="0nVPMgApDhdSTMEYurT9o"}
[Message Format (S.200, S.201)](docId:0nVPMgApDhdSTMEYurT9o)
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[General Message Requirements (S.202, S.207, S.209)](docId\:ii_uIfjj7E2rm2AAeIeRG)
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:::LinkArrayItem{headerType="NONE" docId="D0acaV_NjcERsRuWNRvO1"}
[Display Requirements (R.300, R.302, R.316)](docId\:D0acaV_NjcERsRuWNRvO1)
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:::LinkArrayItem{headerType="NONE" docId="yo0WK0Pj1V1BnmR0kNL1b"}
[E-Prescribing Message Flows (R.318)](docId\:yo0WK0Pj1V1BnmR0kNL1b)
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:::LinkArrayItem{headerType="NONE" docId="lFimF_fD6Pbqs0nOjQUt2"}
[RxRenewal (R.313)](docId\:lFimF_fD6Pbqs0nOjQUt2)
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:::LinkArrayItem{headerType="NONE" docId="fCI6IIX9ImwkfI15MQiiz"}
[CancelRx and CancelRxResponse Requirements (R.314)](docId\:fCI6IIX9ImwkfI15MQiiz)
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:::LinkArrayItem{headerType="NONE" docId="w2L7i6-GSYL89PwZKkRPU"}
[Prescribing System-Initiated Change Process for LTPAC – Requirements/Best Practices (R.312)](docId\:w2L7i6-GSYL89PwZKkRPU)
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:::LinkArrayItem{headerType="NONE" docId="f9U7KMRfVRv2zhx_JqbKS"}
[RxFill/RxFillIndicatorChange Requirements (R.315)](docId\:f9U7KMRfVRv2zhx_JqbKS)
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[Resupply Requirements (R.311)](docId\:gGSIYazw1S1l3l-MS1Ahu)
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:::LinkArrayItem{headerType="NONE" docId="zH1dySWlx0CWJSGghCrrc"}
[Acknowledgement Messages (R.317)](docId\:zH1dySWlx0CWJSGghCrrc)
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[Message Header Elements (S.205)](docId\:EcVJmHP3rvpi3LvV61P_f)
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:::LinkArrayItem{headerType="NONE" docId="FdINsQ0IBQu9EflRzYMiM"}
[Message Linkage (S.210)](docId\:FdINsQ0IBQu9EflRzYMiM)
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:::LinkArrayItem{headerType="NONE" docId="jQTcR-JfyyebtfGYS7xGO"}
[Medication Elements (R.305, R.306, R.307, S.208, R.308)](docId\:jQTcR-JfyyebtfGYS7xGO)
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:::LinkArrayItem{headerType="NONE" docId="FNKNjiSIJ5HXPtFXnRNfq"}
[Benefits Coordination (R.304)](docId\:FNKNjiSIJ5HXPtFXnRNfq)
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:::LinkArrayItem{headerType="NONE" docId="MTr73LO0ODXYdOzxDw-ll"}
[RxRenewal (R.303)](docId\:MTr73LO0ODXYdOzxDw-ll)
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:::LinkArrayItem{headerType="NONE" docId="fqGf9fwCElRw17z_JdoLV"}
[RxRenewal Element Usage (R.309)](docId\:fqGf9fwCElRw17z_JdoLV)
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:::LinkArrayItem{headerType="NONE" docId="lxZ1qZyq1OFPizg887WqY"}
[FollowUpRequest Element Usage (R.310, R.323, R.324)](docId\:lxZ1qZyq1OFPizg887WqY)
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:::LinkArrayItem{headerType="NONE" docId="iGPbrah8F9yzNsV-MYS4i"}
[MessageIndicatorFlag (R.319, R.320.1, R.321, R.322)](docId\:iGPbrah8F9yzNsV-MYS4i)
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