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Sevicewide Training and Event Tracking System (STETS) Servicewide Training Advisory…

Internal Revenue Manual Part 6. Human Resources Management · 2026-10-03 edition · updated 2026-10-04 · United States

The STAC Lock is a STETS feature that freezes (locks) these fields: cost, participant, and objective and return on investment (ROI) statements, for events with estimated or reimbursable costs of $20,000 and more. A “pending” event is locked before the STAC’s review. The lock feature minimizes the need for re-work during the STAC review process and subsequent event package preparation. It also:

Captures the original event start date shown in the record.

Ensures compliance with the TD 12-70 requirement that prohibits the postponement of an approved event beyond one year of the original event start date.

Ensures a tracking of the correct approval status to minimize data integrity errors.

Improves the integrity of the data for analytics and measures.

Creates a trail and documentation in the event of a TIGTA audit or an internal review, e.g. the Quality Assurance Support Plan (QASP).

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▸Contents — Internal Revenue Manual Part 6. Human Resources Management

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