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To assist in using G-Invoicing, the Fiscal Service offers a variety of downloadable resources, including rules, standards, guides, and presentations. For cooperative training, see the Fiscal Service Main Training page for various meetings.

Treasury Financial Manual

For TFM G-Invoicing guidance, visit the following sections:


System Interface Specifications

System Mapping & Validation Rules (SM & VR)

Data Elements

XML Samples

G-Invoicing Unit of Measure (UOM) List

Interagency Agreement (IAA)

Intragovernmental Working Group

ITWG Meetings are each 1 hour conference calls that focus on data attributes, process flows, and system interface specifications for G-Invoicing. Topics are provided prior to the meetings to ensure that all ITWG participants with expertise on the topic join the meeting.

To join the ITWG Working Group, send an e-mail to

Download the Meeting Schedule and Current Agenda.

Meeting Minutes & PowerPoint Presentations

Last modified 12/09/19