NWPX Infrastructure Achieves UL 508A Certification for several NWPX Park Products

Rhea-AI Summary

NWPX Infrastructure (Nasdaq: NWPX) announced on November 25, 2025 that it has achieved UL 508A certification for its control panel systems used across water, wastewater, and stormwater products. The certification confirms compliance with safety and quality standards, verified short-circuit current ratings (SCCR), NEC Article 409 compatibility, and proper labeling and wiring.

The company says UL 508A is expected to simplify permitting and inspections, shorten project timelines, and support deployment across NWPX Park core products—such as oil-water separators, lift stations, grease interceptors, metering/backflow units, potable water, fire protection, and irrigation systems—while maintaining SCADA, BMS, and remote telemetry compatibility.

Positive

• UL 508A certification achieved on November 25, 2025
• Certification confirms NEC Article 409 compliance and verified SCCR
• Expected to shorten permitting and inspection timelines
• Certified control systems apply across multiple core product lines

Negative

• None.

Insights

Infrastructure Controls Certification Analyst

UL 508A certification for control panels should reduce permitting friction and speed project timelines for NWPX products.

NWPX secured UL 508A certification for its control panel systems on Nov. 25, 2025, which formally verifies component selection, conductor sizing, short‑circuit current ratings, labeling, and compliance with NEC Article 409. This removes a common technical hurdle for engineered systems and makes installers, engineers, and municipal inspectors more likely to accept the control assemblies without repeated review.

The main dependency is whether customers and permitting authorities update their acceptance processes to recognise the certification, and whether certified panels are consistently documented and shipped with the required SCCR and labeling. If documentation or field wiring practice deviates from the certified configuration, the on‑paper benefit will be reduced. Trackable near‑term indicators include the share of quotes that cite UL certification, approval times on pilot municipal projects, and the first installations using certified panels; expect to observe effects within Q1 2026 to Q3 2026.

Certification streamlines approvals for projects with automated controls systems. 

VANCOUVER, Wash., Nov. 25, 2025 /PRNewswire/ -- NWPX Infrastructure, Inc. (Nasdaq: NWPX), a leading manufacturer of water-related infrastructure products, today announced it has achieved UL 508A certification for control panel systems used across water, wastewater, and stormwater infrastructure products.

This certification indicates that a product has been tested by UL Solutions and meets scientific safety, quality, and security standards including correct component selection, proper conductor sizing, protection, and spacing; verified short-circuit current ratings (SCCR); and accurate labeling, documentation, and wiring methods. This certification also assures our customers the product is in compliance with the National Electrical Code (NEC) Article 409 and is expected to simplify permitting and inspection, streamline approvals, and shorten project timelines.

UL certified control systems can be found on many of NWPX Park's core products including oil-water separators, grease interceptors, lift stations, water storage units, metering backflow units, potable water, fire protection, and irrigation systems. All our automated control systems are compatible with Supervisory Control and Data Acquisition (SCADA), Building Management Systems (BMS), and remote telemetry while enabling standardized, scalable system deployment.

"We see this certification as a noticeable advantage for our products," states Scott Montross, President and CEO of NWPX Infrastructure. "Engineers and municipalities trust UL certified products, and as more customers are requiring automated controls, having the security, traceability, and quality known by UL reinforces our position as a trusted, scalable provider of infrastructure automation solutions."

About NWPX Infrastructure – Founded in 1966, NWPX Infrastructure, Inc. is a leading manufacturer of water-related infrastructure products. Under the Northwest Pipe Company brand, the Company is the largest manufacturer of engineered water transmission systems in North America and produces steel casing pipe, bar-wrapped concrete cylinder pipe, and pipeline system joints and fittings. The Company also provides solution-based products for a wide range of markets including high-quality reinforced precast concrete products and lined precast sanitary sewer system components, which are manufactured under the NWPX Geneva brand, as well as water distribution and management equipment including pump lift stations, wastewater pretreatment, and stormwater quality products through the NWPX Park brand. Strategically positioned to meet growing water and wastewater infrastructure needs, the Company's skilled team is committed to quality and innovation while upholding its core values of accountability, commitment, and teamwork. Headquartered in Vancouver, Washington, NWPX Infrastructure operates 13 manufacturing facilities across North America. For more information, please visit www.nwpx.com.

Contact:
Aaron Wilkins
Chief Financial Officer
NWPX Infrastructure, Inc.
360-397-6294 • awilkins@nwpx.com

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SOURCE NWPX Infrastructure, Inc.

FAQ

What did NWPX announce on November 25, 2025 regarding UL certification?

NWPX announced it achieved UL 508A certification for its control panel systems on November 25, 2025.

How does the UL 508A certification affect NWPX (NWPX) permitting and inspections?

The company says UL 508A will simplify permitting and inspections and help shorten project timelines.

Which NWPX Park products are covered by the UL 508A certified control systems?

Certified control systems are used on oil-water separators, grease interceptors, lift stations, water storage, metering/backflow units, potable water, fire protection, and irrigation systems.

Does NWPX's UL 508A certification ensure NEC compliance for its control panels?

Yes; the certification indicates compliance with the National Electrical Code Article 409 as described.

Will NWPX's certified control systems work with SCADA or building management systems?

Yes; the announcement states all automated control systems are compatible with SCADA, BMS, and remote telemetry.

Why might engineers and municipalities prefer NWPX products after this certification?

The company says UL certification provides known safety, traceability, and quality, which engineers and municipalities commonly require.