# 2026-19441: Pipeline Firm Boosts Arizona Line Pressure for Better Flow

2026-19441, Transwestern Pipeline Company, LLC; Notice of Request Under Blanket Authorization and Establishing Intervention and Protest Deadline, is a Federal Register notice from Energy Department, Federal Energy Regulatory Commission published 2026-09-23, effective 2026-11-17 (as of 2026-09-30).

- Canonical: https://policyrisk.com/federal-register/2026-19441
- As of: 2026-09-30
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2026-19441
- Title: Transwestern Pipeline Company, LLC; Notice of Request Under Blanket Authorization and Establishing Intervention and Protest Deadline
- Type: Notice
- Agencies: Energy Department; Federal Energy Regulatory Commission
- Citation: 91 FR 60375
- Published: 2026-09-23
- Effective: 2026-11-17
- Comments close: not stated
- Significant: no
- Touches household money: no
- Regulation identifier numbers: none
- Last updated: 2026-09-30

## In one line

Pipeline Firm Boosts Arizona Line Pressure for Better Flow

## Summary

Transwestern Pipeline wants to boost the pressure on its Phoenix Lateral pipeline in Arizona from 1008 to 1126 psi. This change helps the company run more efficiently without building anything new or spending extra money. Customers won’t see any delivery problems, and folks have until a set deadline to speak up or join in.

## Effects PRIA read

- Pipeline pressure raised, company gains efficiency: benefit, low. Transwestern filed to raise the Phoenix Lateral's maximum allowable operating pressure (MAOP) from 1008 psig to 1126 psig. The company says this will provide additional operating flexibility and compressor station efficiency, will not involve any construction or additional cost, and will not impair…

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## Sources
- [2026-19441 on federalregister.gov](https://www.federalregister.gov/documents/2026/09/23/2026-19441/transwestern-pipeline-company-llc-notice-of-request-under-blanket-authorization-and-establishing)
- [2026-19441 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2026-09-23/pdf/2026-19441.pdf)

## Related
- [Previous: 2026-19440, High Island Offshore System, L.L.C.; Notice of Application and Establishing Int…](https://policyrisk.com/federal-register/2026-19440)
- [Next: 2026-19442, Information Collection; Paperwork Reduction Act Changes in FAR Case 2026-010, R…](https://policyrisk.com/federal-register/2026-19442)
- [All Federal Register documents](https://policyrisk.com/federal-register)

Source: PRIA, https://policyrisk.com/federal-register/2026-19441 (as of 2026-09-30).