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ARTICLE · 21 NOVEMBER 2025

OEB Updates Rules To Address Generative AI In Regulatory Filings

Aird & Berlis LLP
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On November 13, 2025, the Ontario Energy Board ("OEB") issued a letter advising of amendments to its Rules of Practice and Procedure ("Rules") to address the use of artificial intelligence...

CanadaEnergy and Natural Resources
Dennis O'Leary
Dennis O'Leary
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On November 13, 2025, the Ontario Energy Board ("OEB") issued a letter advising of amendments to its Rules of Practice and Procedure ("Rules") to address the use of artificial intelligence by parties to prepare filings for adjudicative proceedings. The OEB used this occasion to also make three further amendments to the Rules which are summarized below. All of the amendments are effective immediately with the exception of those relating to AI, which are effective December 1, 2025.

Generative AI in OEB Filings

The OEB has created a definition in the Rules for "Generative Artificial Intelligence" ("GAI") at Section 3.01 which reads:

"Generative Artificial Intelligence" means a computer system capable of independently creating or generating content, usually based on prompts or information provided to the system, but does not include programs that follow pre-determined instructions to accomplish automated tasks such as system automation, document editing or

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