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Steps to take if your employee is called up for active duty

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

Statutes and regulations authorizing income withholding allocation among multiple child support orders against one parent

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

Spreadsheet template for organization to submit multiple Federal Employer Identification Numbers (FEIN) during the registration process

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

Explains employers' roles and responsibilities in the child support program

e-NMSN Software Interface Specification

Version 1.2
August 18, 2021

Provides software interface specification of an electronic version of the National Medical Support Notice for the employer

Description of SSA's on-line tool for verifying the employee's name and SSN combination