# Preventing Undue Discrimination and Preference in Transmission Service
> **US Department of Energy** · Order on Clarification. · Published 2009-11-25 · Effective 2009-11-25 · 74 FR 61511
## Document
- **Document number:** E9-28216
- **Category:** other
- **Sub-agency:** US Department of Energy
- **Federal Register citation:** 74 FR 61511
- **CFR reference:** 18 CFR 37
- **Publication date:** 2009-11-25
- **Effective date:** 2009-11-25
- **Energy docket:** Docket Nos. RM05-17-005 and RM05-25-005
## Abstract

The Federal Energy Regulatory Commission affirms its basic determinations in Order Nos. 890, 890-A, 890-B, and 890-C, granting clarification regarding certain revisions to its regulations and the pro forma open-access transmission tariff, or OATT, adopted in Order Nos. 888 and 889 to ensure that transmission services are provided on a basis that is just, reasonable, and not unduly discriminatory. The Commission grants clarification regarding the requirement to undesignate network resources used to serve off-system sales.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2009/11/25/E9-28216/preventing-undue-discrimination-and-preference-in-transmission-service)
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