Non-Agricultural Source Materials (NASM)

On January 1, 2011, new rules and guidelines for applying non-agricultural source materials (NASM) to farmland took effect.

The amendments to the Regulation (General Regulation (O. Reg. 267/03) under Nutrient Management Act, 2002 (NMA) have many benefits. Specifically, the amendments:

  • remove overlapping approvals to reduce regulatory burden;
  • enhance environmental protection by strengthening and clarifying the rules;
  • focus on the quality of the material being land-applied, ensuring it meets strict criteria and is beneficial to the soil; and
  • include all Ontario farms where non-agricultural material is applied.

New NASM Regulations


NASM Plan Developers


Generators and Wastewater Treatment Plants

Haulers and Land Applicators


Residents of Ontario

For more information:
Toll Free: 1-877-424-1300
Author: OMAFRA Staff
Creation Date: 18 January 2010
Last Reviewed: 19 July 2013