Open Access Transmission Tariff The Open Access Transmission Tariff (OATT) defines the terms and conditions of point-to-point and network integration transmission services offered by BPA Transmission Services.

Open Access Transmission Tariff News and Notices Sign up for e-mail list Related Information ATC Methodology Current Rate Schedules Order 890 Customer Involvement

Open Access Transmission Tariff Tariff Thru Attachment K (761k PDF) 9/13/06 Tariff Attachment L, Large Generation Interconnection (548k PDF) 9/13/06 BPA Planning Attachment K (127k PDF) 3/27/08 To view and print pages that have been revised since the previous posting, choose one of the following options: All Revised Sheets for Tariff thru Attachment K & Attachment L Revised Sheets for Tariff thru Attachment K only Revised Sheets for Attachment L only For details concerning the revisions made to each Sheet, access FERC online and search for docket numbers: NJ05-2-002 EL03-125-003 Proposed Tariff Revision LGIA Interest Rate Amendment Proposed Amendment to Section 4 of OATT