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OSHA’s Nationally Recognized Testing Laboratory (NRTL)

Written by Vishal Ranjan | Updated: September 10, 2025

OSHA’s Nationally Recognized Testing Laboratory (NRTL)

Written by Vishal Ranjan |  Updated: September 10, 2025

OSHA’s Nationally Recognized Testing Laboratory (NRTL) Program authorizes private sector organizations to certify certain items to guarantee that they meet OSHA electrical standards for both construction and general industry. Each NRTL is known for a certain set of test standards, and each NRTL has its own registered certification mark(s) to indicate product compliance to the relevant product safety test standards. 

The list under OSHA’s NRTL includes Applied Research Laboratories of South Florida, Bay Area Compliance Laboratories, Bureau Veritas Consumer Products Services (BVCPS), CSA Group Testing and Certification Inc., DEKRA Certification, Eurofins Electrical and Electronic Testing NA,Inc.,  FM Approvals,  International Association of Plumbing and Mechanical Officials EGS (IAPMO), Intertek Testing Services NA, Inc. (ITSNA), Lab Test Certification, Nemko North America, NSF International, QAI Laboratories, QPS Evaluation Services, SGS North America, Solar PTL, Southwest Research Institute, TUV Rheinland of North America, TUV SUD America, TUV SUD Product Service GmbH, and Underwriters Laboratories.

ANSI C37.44, ANSI Z83.26, ASME A17.5, CPLSO-14-2016, ANSI Z21.89, ANSI Z8.1, and AAMI ES60601-1:2005/(R) 2012, CSA/AM Z21.1, CSA/AM Z21.5.1, CSA/AM Z21.5.2, FM 1221, FM 1110, FM 1635, FM 2000, FM 2008, FM 1321, FM 1333, CSA/AM Z83,18, CSA/ANSI C22.2 No.336, FM 3990, and FM 7260 etc.

All these standards are practiced in various industries to ensure efficient production and maintenance of equipment and systems. These standards help focus on the minute details and opt for effective ways to manufacture reliable equipment.

ABOUT AUTHOR

Vishal Ranjan

Vishal Ranjan is an experienced Materials Consultant and Structural Engineer with over 5 years of material selection, testing, and failure analysis expertise. He specializes in investigating and reconstructing material failures and providing scientifically sound recommendations rooted in advanced engineering principles. Currently serving as a Customer Engagement Manager, Vishal combines his technical background with client-focused strategies to deliver practical, high-impact solutions in materials and structural engineering. His work is grounded in a strong academic foundation: He holds an M.Tech in Structural Engineering from IIT Kanpur, one of India's premier engineering institutions. Vishal’s approach is both analytical and results-driven.

He has a proven ability to bridge technical insights with real-world applications. He has played a key role in various projects requiring precise evaluation of structural integrity, root cause failure investigations, and materials performance under diverse environmental and operational conditions. Through his work, Vishal continues to contribute to advancements in engineering practices and client solutions, focusing on safety, durability, and innovation.

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