What does ACS mean in ISO 20022?

ACS is Canada ACSS in the ExternalCashClearingSystem1Code code set: Canadian Dollar (CAD) - Automated Clearing Settlement System (ACSS).

Where does ACS appear in a message?

For example in camt.056, element Undrlyg/TxInf/OrgnlTxRef/SttlmInf/ClrSys/Cd.

ExternalCashClearingSystem1Code

ACS Code: Canada ACSS

Written and maintained by ZagTrader. Last reviewed 21 October 2026. How this page is sourced and checked

ACS means canada acss in the ISO 20022 cash clearing system code set. Canadian Dollar (CAD) - Automated Clearing Settlement System (ACSS).

Code: ACS
ISO name: CanadaACSS
Status: Registered
Last updated: 2020-05-01

Official definition

Canadian Dollar (CAD) - Automated Clearing Settlement System (ACSS).

Definition from the ISO 20022 External Code Sets, 2Q2026 (published 28 Aug 2026).

Messages and fields that use ExternalCashClearingSystem1Code

Message	Element path
pacs.002	TxInfAndSts/OrgnlTxRef/SttlmInf/ClrSys/Cd
pain.002	OrgnlPmtInfAndSts/TxInfAndSts/OrgnlTxRef/SttlmInf/ClrSys/Cd
pacs.004	GrpHdr/SttlmInf/ClrSys/Cd, TxInf/OrgnlTxRef/SttlmInf/ClrSys/Cd
camt.056	Undrlyg/TxInf/OrgnlTxRef/SttlmInf/ClrSys/Cd
camt.029	ModDtls/OrgnlTxRef/SttlmInf/ClrSys/Cd, CxlDtls/TxInfAndSts/OrgnlTxRef/SttlmInf/ClrSys/Cd, CxlDtls/OrgnlPmtInfAndSts/TxInfAndSts/OrgnlTxRef/SttlmInf/ClrSys/Cd
pacs.008	GrpHdr/SttlmInf/ClrSys/Cd
pacs.009	GrpHdr/SttlmInf/ClrSys/Cd
camt.005	TxQryDef/TxCrit/NewCrit/SchCrit/PmtTo/SysId/Cd, TxQryDef/TxCrit/NewCrit/SchCrit/PmtFr/SysId/Cd

And 17 more messages: see the ExternalCashClearingSystem1Code page.

ACS in other code sets

ACS in ExternalMarketInfrastructure1Code

ACS questions

What does ACS mean in ISO 20022?: ACS is Canada ACSS in the ExternalCashClearingSystem1Code code set: Canadian Dollar (CAD) - Automated Clearing Settlement System (ACSS).
Where does ACS appear in a message?: For example in camt.056, element Undrlyg/TxInf/OrgnlTxRef/SttlmInf/ClrSys/Cd.

All ExternalCashClearingSystem1Code codes · ISO 20022 code sets

The ISO 20022 code names and definitions on this page are reproduced from material published at iso20022.org under the ISO 20022 Intellectual Property Rights policy. This is not the official source: the up-to-date ISO 20022 standards and repository material are published only at iso20022.org. Explanations in our own words are by ZagTrader. ZagTrader is not affiliated with or endorsed by ISO or Swift.