How to request a post-closure state determination under the Mining Act — and autofill on00673 with my-id.ca
Request a post-closure state determination without retyping proponent particulars
Mining proponents repeat legal name, address, contact information, and site identifiers when filing a Post-Closure State Determination Request under the Mining Act. This guide is an example of storing them once in my-id.ca.
Official form and source
Start from the official source and always use the current version — form numbers and links can change:
- Service page: Mining Act — ontario.ca
- Form (Central Forms Repository): Post-Closure State Determination Request, Under the Mining Act — on00673
What this form is about
Form on00673 requests a post-closure state determination under the Mining Act — confirm when a determination is required on ontario.ca.
Before you start: what to gather
- Proponent legal name and mailing address.
- Contact details including phone and email.
- Site or project identifiers.
- Closure records and rehabilitation particulars — confirm on ontario.ca.
Confirm the current process on ontario.ca.
How my-id.ca makes it faster
- Save it once. Store your proponent name, address, and contact details in your my-id.ca profile.
- Keep documents ready. Upload supporting documents to my-id.ca Files so you are not searching at form time.
- Autofill the form. Use the my-id.ca Chrome extension on a web form, or fill a PDF from your saved profile inside my-id.ca.
- Review and submit yourself through the official channel.
Why do it in my-id.ca
Related Ontario forms repeat the same personal details. Captured once in my-id.ca — stored in Canada, with AI on its own servers — every form starts mostly complete.
Frequently asked questions
- When is form on00673 used?
- When a proponent seeks a post-closure state determination under the Mining Act — confirm on ontario.ca.
- How does my-id.ca help?
- It autofills proponent name, address, and contact details.
- What records support a post-closure determination?
- Closure and rehabilitation records depend on Mining Act requirements — confirm on ontario.ca.
Fill it once. Reuse it everywhere.
Save your information in my-id.ca once, then autofill this form and the next one — web forms with the Chrome extension, PDFs right in the app. Your data is stored in Canada and AI runs on my-id.ca's own servers, never sent to third-party AI providers.