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Rules for out-of-state goods

PacifiCorp v. Sixkiller

Updated Nov 12, 2026

In brief

Where it stands
Petition Pending

Awaiting an order on the petition

No decision timeline until the Court agrees to hear the case.

What it’s about
PacifiCorp, an Oregon utility, argues that Washington’s cap-and-trade rules place a different burden on the same electricity depending on whether it is sold in or out of state, and that the Ninth Circuit read Tracy too broadly.
What's at stake
PacifiCorp’s challenge to Washington’s rules remains unresolved at the Supreme Court.

Summary: written with AI from the case record.

What it's about

Its petition was distributed for a Supreme Court conference, a step that does not mean the Court agreed to hear the case.

PacifiCorp says the Ninth Circuit read the Supreme Court’s earlier Tracy decision too broadly.

Question presented

Whether Tracy exempts a State from dormant Commerce Clause scrutiny when state law imposes different burdens on the same product based on whether the product is sold in state or out of state?

What happens next

The petition was distributed for the Court’s Nov. 6, 2026 conference. That does not mean the Court has agreed to hear the case or guarantee an order date; no oral argument or decision date is set.

Documents

1

Docket activity

9
  • New analysis added

    Nov 12, 2026 · Court records

  • AI analysis generated: Case Briefing

    Nov 12, 2026 · Generated

  • Case data updated: summary, question_presented, generation_metadata

    Nov 12, 2026 · Court records

  • Case data updated: question_presented, extraction_metadata

    Nov 12, 2026 · Court records

  • Case data updated: documents, description, proceeding_type

    Oct 27, 2026 · supremecourt.gov

Show 4 more
  • Case data updated: documents, description, proceeding_type

    Oct 21, 2026 · supremecourt.gov

  • Case data updated: documents, description, document_url, proceeding_type

    Oct 13, 2026 · supremecourt.gov

  • Case data updated: documents, description, document_url, proceeding_type

    Sep 4, 2026 · supremecourt.gov

  • Brief added: Petition

    Sep 4, 2026 · Court records

Sources

Primary materials plus reporting. Best-effort analysis: this explainer relies on a mix of primary materials and trusted secondary sources. Official filings and opinions remain authoritative.

Checked Nov 12, 2026Methodology

Court records and filings

Reporting and analysis