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Guidance on what can and cannot be changed on the standard OMB-approved IWO form

e-IWO Record Layouts

Version 3.0
January 22, 2019

Provides the universal record layouts for the e-IWO system

For state agency staff, this explains some differences between independent contractors and employees

System-to-System Interface Option for States and Employers

e-IWO Software Interface Specification
June 6, 2018

Provides a processing overview and technical specifications for the electronic transmission of income withholding information

Explains actions private employers and federal agencies must take when an employee is terminated or rehired

Provides contact information for the multistate employers

The flowchart shows how the Income Withholding for Support form is processed by employers and child support agencies

No-Programming Option for Employers

e-IWO Software Interface Specifications
July 3, 2012

Provides e-IWO specifications and an electronic version of the IWO for the employer no-programming option