Sets out the minimum conditions and standards that a licensed unit sub-metering provider (USMP) must meet when providing unit sub-metering services on behalf of a master consumer.
Sector
Electricity
Category
Industry Codes/Rules
Last revised
August 18, 2025
Latest version
Recent amendments to the Unit Sub-Metering Code
2. Amendments relating to the OEB’s Review of the Consumer Protection Framework for Customers of Unit Sub-Meter Providers (EB-2023-0345). These amendments came into force on August 18, 2025. More information | August 18, 2025 version (pdf)
1. Amendments relating to Phase 1 of the OEB’s Customer Service Rules Review (EB-2017-0183). These amendments came into force in three phases: on March 14, 2019, on July 1, 2019, and on March 1, 2020. More information | March 1, 2020 version (pdf)