Ontario Compost Quality Standards

Description: This document sets environmentally protective standards for the production of compost for beneficial uses. It also provides details on the regulatory framework under Regulation 347 (waste management), which exempts compost that meets specified quality standards from the need for an Environmental Compliance Approval (for use and transport).

This document consists of four parts:

Part I - Introductory information and an overview of the legislative framework
Part II - Standards for feedstock and compost
Part III - Compost use requirements and considerations
Part IV - Guidance for feedstock and compost sampling, and laboratory analysis

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