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Termination of MHSW Program

The Minister of the Environment, Conservation and Parks has provided notice of termination for the Municipal Hazardous or Special Waste (MHSW) program operated by Stewardship Ontario, pursuant to section 14 of the Waste Diversion Transition Act, 2016. The September 11, 2023, notice letter is available here. The MHSW program, also known to consumers as the […]

MHSW Data Availability Notice

Stewardship Ontario is completing the final steps to close the MHSW Program. Stewards should note that MHSW data is being transferred to the Resource Productivity & Recovery Authority per the MHSW Wind Up Plan. MHSW stewards will have access to their historical reports on the WeRecycle Portal until September 16, 2022. Individual steward data will […]

Final MHSW Fee Reduction Update and Residual Fund Disbursement Notice

The approved Municipal Hazardous or Special Waste (MHSW) Wind Up Plan and subsequent amendments included provisions for Stewardship Ontario to disburse MHSW Program surplus funds to stewards and Industry Stewardship Organizations (ISOs) to facilitate fee reductions during the remainder of the program. The approved Plan also provided for the disbursement of residual funds to stewards […]

Final MHSW Report Reminder

October 18, 2021 MHSW stewards are reminded to submit their final quarterly supply reports of Q3 sales data (July 1 – Sept 30) in the WeRecycle Portal by October 31, 2021. The final supply report is a regulatory obligation which is required for stewards to remain in good standing (and be eligible for program fee reductions and potential […]

MHSW Program Ceases Operations

As per Ministerial direction, the MHSW Program will cease operations by end of day September 30, 2021. Final steps and key dates for MHSW are available in these summaries for Stewards and Service Providers. Detailed information related to the implementation of the approved MHSW Wind Up Plan and materials from our recent wind up webinar is available here: […]

Upcoming Final Single-use Battery Steward Invoices and Fee Reductions

As previously communicated, Stewardship Ontario delayed the issuance of final single-use battery steward invoices in order to maximize the level of surplus funds it could allocate toward the fee reduction. Final resolution of the outstanding steward adjustment has now been completed and Stewardship Ontario will be issuing the final invoices for the single-use battery program […]

Single-use Battery Program Final Invoice Delay and Financial Update Webinar Materials

Thank you to those who joined us for today’s webinar to review details around single-use battery steward fee reductions and the process for returning residual funds. The webinar materials are now available on the MHSW wind up webpage under ‘Single-use Battery Program Wind Up – June 30, 2020’. Final Single-use Battery Steward Invoices Delayed As noted during […]


The Stewardship Ontario Board has reviewed finances in light of the recent Resource Productivity and Recovery Authority (RPRA) approval of the Industry Stewardship Organization (ISO) Surplus Fund Transfer Addendum and has set initial fee reduction schedules for some MHSW materials. Please visit the MHSW Wind Up webpage for more information.


The Resource Productivity and Recovery Authority’s (RPRA) Board of Directors approved Stewardship Ontario’s ISO Surplus Fund Transfer Addendum to the MHSW Wind Up Plan. The addendum outlines the amount of surplus funds to be transferred to the Industry Stewardship Organizations (ISOs) as a lump sum and the process for Stewardship Ontario to recover reasonable unexpected costs related to the […]

MHSW Single-use battery program winds up June 30, 2020

As per Ministerial direction, the program for single-use batteries will wind up today, June 30, 2020. Stakeholders can find extensive wind up details outlined in the approved MHSW Wind Up Plan. A summary of key dates is below. Key dates for stewards: June 30, 2020: Single-use battery program terminates. July 31, 2020: Final supply report for Q2 data […]