Upcoming Events

Monday, October 2, 2023 OSSGA Generic First Line Supervisor Training - IN PERSON
Thursday, October 5, 2023 OSSGA Common Core Training - INPERSON
Thursday, October 12, 2023 OSSGA Quality Control Training - IN PERSON
CBM Codrington
Monday, October 23, 2023 OSSGA Train the Trainer Program - IN PERSON


Thursday, October 26, 2023 OSSGA Aggregates 101 - IN PERSON
OSSGA Office
Friday, October 27, 2023 OSSGA Aggregates 201 - IN PERSON
Gravel Facts


OSSGA is understood, acknowledged and supported by the government, public and others for providing essential materials, in a responsible manner, that builds a stronger Ontario. We will support the achievement of this vision through a leadership focus on seven key pillars:

  1. Securing the long-term availability of valuable aggregate resources.
  2. Environmental stewardship. OSSGA will be the model of, and the voice of, environmental sustainability and stewardship. We will advocate for consistent application of best operating standards and for environmentally responsible resource use.
  3. Leading the development of our industry. We are proactive. We are bold in our leadership efforts to guide the industry into the future. We seek to work productively with our partners.
  4. Membership engagement and recognition of the value they receive from the OSSGA.
  5. Public awareness and recognition of the need for a responsibly managed aggregate industry.
  6. Successfully affecting the development and implementation of government initiatives that promote the viability of the industry.
  7. Building strong and effective organizational arrangements.


OSSGA works in partnership with government and the public to promote a safe and competitive aggregate industry contributing to the creation of strong communities in the province.
OSSGA promotes the responsible use of these resources by encouraging stewardship and the maintenance and enhancement of the environment.