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​TC-20 Tariff Proceeding

​BPA will use the statutory procedures under Section 212(i)(2)(A) of the Federal Power Act to establish a new open access transmission tariff for transmission service across the Federal Columbia River Transmission System (FCRTS). The TC-20 (Terms and Conditions) Tariff Proceeding, which largely follows rate case procedures, will run concurrently with the BP-20 rate proceeding.

TC-20 Settlement Record of Decision

BPA issued a record of decision (ROD) in the TC-20 Tariff Terms and Conditions Proceeding to adopt the TC-20 Settlement Agreement, which includes a new Open Access Transmission Tariff containing the generally applicable terms and conditions for transmission service over the Federal Columbia River Transmission System. The new tariff will be effective October 1, 2019.

TC-20 Federal Register Notice Publication
The Federal Register Notice (FRN) announcing the commencement of the TC-20 Transmission Terms and Conditions Proceeding was issued on Thursday, December 6, 2018. 
Please see the BP-20 proceeding website for information on the Federal Register Notice announcing the commencement of the BP-20 Rate Case.
Ex Parte Rules

​With publication of the FRN, a prohibition of ex parte communications has begun and will remain in effect throughout the duration of the proceeding. BPA’s Rules of Procedure prohibit ex parte communications during the TC-20 proceeding. Please refer to BPA’s letter to parties interested in the BP-20 and TC-20 proceedings for additional information on the ex parte rule.

Ex Parte Communications
  • ​None
​Intervention Instructions

Any entity or person intending to become a party in the BP-20 and/or the TC-20 proceeding must file a petition to intervene through Bonneville’s secure website.  A separate petition must be filed for each proceeding . A first-time user of BPA’s secure website must create a user account and be granted access by the Rate Hearing Coordinator to submit an intervention. Returning users may request access to the BP-20 and/or TC-20 proceeding through their existing accounts, and may submit interventions once their permissions have been updated by the Coordinator. The secure website contains a link to the user guide, which provides step-by-step instructions for creating user accounts, requesting access, generating filing numbers, submitting filings, and uploading interventions. Interventions must conform to the format and content requirements set forth in BPA’s Rules of Procedure Sections 1010.6 and 1010.11. The deadline for Interventions for the BP-20 and/or the TC-20 proceedings was Dec. 11, 2018.

A petition to intervene must state the name and address of the entity or person requesting party status and the entity’s or person’s interest in the hearing. BPA customers and affiliated customer groups will be granted intervention based on petitions filed in conformance with the Rules of Procedure. Other petitioners must explain their interests in sufficient detail to permit the Hearing Officer to determine whether the petitioners have a relevant interest in the hearing. 
The deadline for opposing a timely intervention is two business days after the deadline for filing petitions to intervene. BPA or any party may oppose a petition for intervention. All petitions will be ruled on by the Hearing Officer.  Late interventions are strongly disfavored. Opposition to an untimely petition to intervene must be filed within two business days after service of the petition.
Please contact the respective Rate Hearing Coordinator via email at or (or via telephone at (503) 230-3102) with questions regarding the intervention process.
​Section 212 Process Background

​Pursuant to section 212(i)(2)(A) of the Federal Power Act, the Administrator may establish terms and conditions of general applicability for transmission service on the FCRTS after the following requirements are met:

  1. Provide an opportunity for a hearing;
  2. Publish notice in the Federal Register, including the reasons why the specific terms and conditions for transmission services are being proposed;
  3. During the hearing, adhere to the procedural requirements of paragraphs (1) through (3) of section 7(i) of the Northwest Power Act (the requirements for setting rates);
  4. The Hearing Officer issues a Recommended Decision on all material issues of fact, law, or policy; and
  5. Administrator issues a Record of Decision, explaining the reasons for reaching any findings and conclusions which may differ from those of the Hearing Officer.
BPA’s Pro Forma Strategic Guidance as Principles for the New Tariff

Consistent with the BPA 2018-2023 Strategic Plan and Transmission Business Model, BPA plans to propose a tariff that is consistent with the FERC pro forma tariff to the extent possible. BPA will consider differences from the FERC pro forma tariff if the difference is necessary to:

  1. Implement BPA’s statutory and legal obligations, authorities, or responsibilities;
  2. Maintain the reliable and efficient operation of the federal system;
  3. Prevent significant harm or provide significant benefit to BPA’s mission or the region, including BPA’s customers and stakeholders; or
  4. Align with industry best practice when the FERC pro forma tariff is lagging behind industry best practice, including instances of BPA setting the industry best practice.