ACH Rule Changes
Micro-Entries
Phase 2 – March 17, 2023
This rule will define and standardize practices and formatting of Micro-Entries, which are used by some ACH originators as a method of account validation.
Increasing the Same Day ACH Dollar Limit
Effective March 18, 2022
This rule will increase the Same Day ACH Dollar Limit to $1,000,000 per payment. This rule will apply to all Same Day ACH entries; consumer and business payments, credits and debits.
Supplementing Data Security Requirements (Phase 2)
Effective June 3, 2022 – Phase 2
This rule supplements previous ACH Security Framework data protection requirements by explicitly requiring large, non-FI Originators, Third Party Service Providers and Third-Party Senders to protect deposit account information by rendering it unreadable when it is stored electronically. Phase 2 reduces the volume threshold to those who exceed 2 million entries in calendar year 2020, requiring Originators and Third-Party Senders to comply no later than June 30, 2022.
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Micro-Entries
Phase 1 – September 16, 2022
This Rule will define and standardize practices and formatting of Micro-Entries, which are used by some ACH Originators as a method of account validation.
This Rule will become effective in Two Phases:
Phase 1 – September 16, 2022
The term Micro-Entry will be defined, and Originators will be required to use the standard Company Entry Description and follow other origination practices.
Phase 2 – March 17, 2023
Originators of Micro-Entries will be required to use commercially reasonable fraud detection, including the monitoring of Micro-Entry forward and return volumes.
Third-Party Sender Roles and Responsibilities
Implemented September 30, 2022
This rule change will clarify the roles and responsibilities of third-party senders in the ACH network. The rule change addresses the practice of using nested third-party senders, and explicitly requires the third-party sender to conduct a risk assessment.

Treasury Management
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