Recognized Approval Marks

Before an electrical product or piece of electrical equipment is used, sold, displayed or advertised for sale in Ontario, it must be approved by an accredited certification or evaluation agency. The item must carry the official mark or label of the agency which indicates that the product has been independently assessed for safety.

These rules define the standards for safe electrical products and electrical installations in Ontario, and when followed, protect the public, workers and contractors as well as business owners.

Installation and connection of unapproved electrical equipment is against the law, puts people at risk and can lead to prosecution.

Make sure to look for the mark or label before you buy, install or use an electrical product

The following is a list of recognized marks and labels:

Recognized Certification Markings

Canadian Standards Association (CSA) Canadian Standards Association (CSA) Canadian Standards Association (CSA) Curtis Strauss Electrical Safety Authority – Field Evaluation (ESAFE) FM Approvals LLC IAPMO Research and Testing, Inc. IAPMO Research and Testing, Inc.
IAPMO Research and Testing, Inc. IAPMO Research and Testing, Inc. IAPMO Research and Testing, Inc. IAPMO Research and Testing, Inc. Intertek Testing Services Intertek Testing Services Intertek Testing Services Intertek Testing Services
Intertek Testing Services LabTest Certification Inc. LabTest Certification Inc. Met Laboratories (MET) Met Laboratories (MET) Nemko North America, Inc. Nemko North America, Inc. Nemko North America, Inc.
NSF International OMNI Environmental Services Inc Quality Auditing Institute Quality Auditing Institute QPS SGS SGS SGS
SGS TÜV SÜD America Inc. TÜV SÜD America Inc. TÜV SÜD America Inc. TÜV Rheinland of North America, Inc TÜV Rheinland of North America, Inc TÜV Rheinland of North America, Inc TÜV Rheinland of North America, Inc
Underwriters’ Laboratories Inc Underwriters’ Laboratories Inc Underwriters’ Laboratories Inc Underwriters’ Laboratories Inc Underwriters’ Laboratories Inc Underwriters’ Laboratories Inc NTA TR Arnold and Associates, Inc.
Dekra Dekra BACL (Bay Area Compliance Laboratories) BACL (Bay Area Compliance Laboratories)

Recognized Field Evaluation Agency Markings

Canadian Standards Association (CSA) Canadian Standards Association (CSA) Canadian Standards Association (CSA) Canadian Standards Association (CSA) Electrical Safety Authority operating as ESAFE
Electrical Safety Authority operating as ESAFE Intertek Testing Services Intertek Testing Services Intertek Testing Services Intertek Testing Services
LabTest Certification Inc LabTest Certification Inc MET Laboratories MET Laboratories Nemko Canada Inc.
Nemko Canada Inc. Quality Auditing Institute QPS Evaluation Services, Inc. TÜV SÜD America Inc. TÜV SÜD America Inc.
TÜV SÜD America Inc. TÜV SÜD America Inc. Underwriters Laboratories of Canada (ULC) Underwriters Laboratories of Canada (ULC) Underwriters Laboratories of Canada (ULC)
Underwriters Laboratories of Canada (ULC) QPS Evaluation Services, Inc. Canadian Group for Approval Inc Canadian Group for Approval Inc  

Recognized Panel-Only* Field Evaluation Agency Markings

Canadian Standards Association (CSA) Canadian Standards Association (CSA) Electrical Safety Authority operating as ESAFE
Intertek Testing Services   Intertek Testing Services

* NOTE: “PANEL ONLY” label identifies that the panel has been evaluated to the SPE-1000. It does not cover equipment that is added or connected to the panel.

Recognized Field Evaluation Agency Markings for SPE-3000

Canadian Standards Association (CSA) Electrical Safety Authority operating as ESAFE Intertek Testing Services
QPS Evaluation Services, Inc. Labtest Certification Underwriters' Laboratories Inc

Component Certification Markings that are not Recognized on Complete End-use Products

CSA UL Recognized Component UL Recognized Component

Note: Electrical components bearing these marks may have restrictions on their performance or may be incomplete in construction, and are intended to be used as part of a larger approved product or system. The Component Recognition marking is found on a wide range of products, including some switches, power supplies, printed wiring boards, some kinds of industrial control equipment and thousands of other product