IRS Forms

Ontario Form 1000 Guide – Requirements, Notice of Project

Practical steps to complete Ontario Form 1000, who must file, required details, on site copy rules, and when a Notice of Project is due, with key lead times.

Accountably Editorial Team 10 min read Feb 20, 2026 Updated Feb 20, 2026
I still remember a cold site meeting where an inspector asked the GC a simple question, do you have your Form 1000 on site for every employer here today? The team had safety vests, pre-task plans, and a spotless site trailer.

What they did not have was a signed Form 1000 for a small subcontractor who started that morning. The visit turned tense fast. If you have ever felt that jolt of stress, this guide is for you.

Form 1000 is not optional. Before work begins, every constructor and every employer engaged in construction must complete the approved registration and keep a signed copy at the project while they are working. Inspectors expect to see it without delay.

Key Takeaways

  • You must complete Form 1000 for each project and keep a signed copy at the site for the entire time your company is working there.
  • If the project meets Notice of Project triggers under O. Reg. 213/91 section 6, the constructor must file a Notice of Project before work starts, then keep a signed copy posted or available at the site. Cost threshold is generally $50,000, or $250,000 if the work is confined to an automobile factory.
  • You can file required notices online with a My Ontario account. If you fax a Notice of Project, you must still mail the original signed copy to the local MLITSD office.
  • Special notices have their own lead times, for example suspended work platform systems need at least 48 hours notice before first use and diving operations require at least 24 hours notice.
  • Delivery drivers and some short‑visit personnel may keep Form 1000 in their truck and show it to an inspector on request, a pragmatic allowance from the ministry.

What Is Form 1000 and Who Must Complete It

Form 1000, Registration of Constructors and Employers Engaged in Construction, identifies the constructor and every employer on your project. By law, each constructor and each employer must complete the approved registration before beginning work, and the constructor must ensure a copy for each employer is kept at the project while that employer is working. Think of it as your on‑site roster of accountable parties that inspectors can review at any moment.

You can access the current form from Ontario’s Central Forms Repository in English or French. The repository also flags that older versions of Adobe Reader, including Reader XI, will not open these PDFs, so update your Reader before downloading.

Where the form lives during the job

Keep a signed copy in the trailer or another obvious place, and make sure supervisors know exactly where it is. The regulation requires the form to be at the project and available to an inspector while the employer is working there.

When You Also Need a Notice of Project

Form 1000 and the Notice of Project are not the same thing. Form 1000 is site registration for constructors and employers. A Notice of Project is a separate requirement placed on the constructor when certain conditions are met. If your project meets any triggers in section 6 of the Construction Projects Regulation, the constructor must notify the ministry before work begins and keep the completed notice posted in a conspicuous place or available at the project for inspector review.

Common triggers to know

  • Project cost, total labour and materials, expected to exceed $50,000, or $250,000 when the project is confined to an automobile factory.
  • Building work over two storeys or over 7.5 metres in height.
  • Demolition of certain buildings at least four metres high with a floor area of at least thirty square metres.
  • Bridges, earth‑retaining or water‑retaining structures over three metres high, or silos, chimneys, and similar structures over 7.5 metres.
  • Work in compressed air, tunnels, caissons, cofferdams, or wells a person may enter.
  • Trenches more than 1.2 metres deep and over thirty metres long, or trenches more than 300 metres long, or if section 6 does not apply but you are excavating a trench more than 1.2 metres deep that workers may enter, you must still give notice before any work begins.

Pro tip, use the ministry’s online Notice of Project portal, it is faster and reduces back‑and‑forth. You will sign in with a My Ontario account.

Form 1000 For Fully Insured Employers

If you are fully insured, you still complete Form 1000 for every project and keep a signed copy at the site. Indicate your firm’s coverage status and include your WSIB information where requested. The core compliance rule does not change, a signed Form 1000 must be at the project while your company is working.

The ministry’s guidance also allows suppliers and delivery personnel to keep their Form 1000 in their trucks for short visits, and present it to an inspector upon request. That flexibility does not remove the constructor’s duty to ensure employers provide a completed registration.

Deadlines, Penalties, and Posting Rules

Here is how timing works in practice.

  • The constructor files a Notice of Project before construction begins whenever section 6 triggers apply. If faxed, the original signed paper must still be mailed to the local MLITSD office. A signed copy must be posted or available at the site.
  • Form 1000 does not get submitted to the ministry. It must be completed before work begins and kept at the project while each employer is working.

If you cannot produce a required notice or a signed Form 1000 when asked, inspectors can take enforcement action under the Occupational Health and Safety Act. Keep your paperwork current and within easy reach.

At‑a‑glance timing

Item Minimum lead time How to comply on time
Form 1000 for each constructor and employer Before work begins Complete and keep signed copy at the project while the employer is working, do not submit to MLITSD.
Notice of Project (constructor) Before construction begins File online with My Ontario account, or file at the nearest ministry office. If you fax, mail the original signed copy to the local office, then post or keep it available on site.
Diving operations notice At least 24 hours before the dive Give oral or written notice as required by O. Reg. 629/94. Written follow up may be required after oral notice.
Suspended work platform system, first use At least 48 hours before first use Submit the 016‑0080 notice online with My Ontario account, and keep a copy visible at the worksite.

Submission and Posting Options, What Goes Where

  • Use the ministry’s “File a work notice” page to access online forms for notices. You will be prompted to log in with a My Ontario account.
  • For the Notice of Project, paper forms can be ordered from Publications Ontario, and if you choose to fax the notice you must still mail the original signed paper to the regional office.
  • For suspended work platforms, submit the 48‑hour notice online and keep a copy clearly visible at the site.
  • Keep Form 1000 on site for each employer while they are working. Constructors should confirm they have a current, signed copy for every employer mobilized to the project.

Posting, availability, and inspector expectations

The Notice of Project must be posted in a conspicuous location or be available at the project, and Form 1000s must be on hand for each employer. If your team is ever unsure, default to posting in the trailer or at the crew board, and train your site lead to retrieve documents within one minute during an inspection. The regulation’s language is clear about availability on site.

What You Need To Fill Out Form 1000

Gather this information before you start filling:

  • Legal name of the project owner and, if applicable, the owner’s agent.
  • Precise project location and start date.
  • Your firm’s role, constructor or employer, and full legal entity details.
  • WSIB information and main contacts.
  • Constructor contact person for inspector correspondence.

Download the current English or French PDF from the Central Forms Repository, or use the online form option provided by the ministry. Update Adobe Reader if the PDF does not open, older Reader versions, including XI, are not supported by the repository.

Step‑By‑Step, Completing Form 1000 Correctly

  • Confirm your role Are you the constructor or an employer engaged in the project, or both on different scopes, then you complete the form for each role accordingly. The constructor must collect and keep copies from every employer that will work on the site.
  • Open the form Get the PDF from the Central Forms Repository, or use the online form if available. If the PDF throws an error, update Adobe Reader, the repository requires newer versions.
  • Enter legal names and identifiers Use your full legal entity name, not a trade style, and include your WSIB information where requested. Double check addresses and phone numbers for accuracy.
  • Describe the project Enter the precise location and planned start date. If your work depends on a Notice of Project, make sure the constructor has filed it, and that a copy is posted or available.
  • Sign and store A signed copy must be kept at the project while you are working. Train site leads to locate it instantly during inspections.

If your project also needs a Notice of Project

  • File online with your My Ontario account, or at the nearest ministry office.
  • If the job will not take more than 14 days, the regulation allows you to provide the required information by fax or telephone to the nearest office, but you still need the notice available at the site. Many teams still prefer filing online for a clean paper trail.
  • If you fax a Notice of Project, you must mail the original signed copy to the local office.

Common Mistakes That Trigger Orders, And How To Avoid Them

  • Missing signatures Unsigned Form 1000s are not compliant. Sign and date, then file on site where your supervisor can grab it quickly.
  • Only keeping a copy for the constructor Each employer that works on the project needs its own completed registration, and the constructor must ensure a copy is kept at the project while that employer is working. Subs that mobilize late are easy to miss, which is why intake checklists matter.
  • Posting the Notice of Project but not keeping it accessible The regulation requires the completed notification to be posted in a conspicuous place or available for inspector review. Post it in the trailer and save a digital copy for backup.
  • Forgetting special lead times Diving requires at least 24 hours notice, and suspended work platforms require at least 48 hours before first use. Add these to your look‑ahead schedules.
  • Outdated PDFs or broken downloads The Central Forms Repository warns that older Adobe Reader builds, including Reader XI, will not work. Update before downloading to avoid delays on bid days and mobilizations.

Short‑visit suppliers and drivers

The ministry accepts that delivery personnel may keep Form 1000 in their trucks for short visits. Ask them to keep a current, signed copy and be ready to show it on request. The constructor should still track who is on site and ensure compliance.

Real‑World Workflow Tips

  • Build a mobilization checklist that includes Form 1000, WSIB clearance, site orientation, and emergency contacts.
  • Keep a digital binder, then print and post a thin on‑site packet for inspectors.
  • Set one inbox for Notices of Project and special notices, then archive the signed copy plus submission confirmation.
  • Run a weekly audit, five minutes, to confirm every employer currently on site has a signed Form 1000 in the packet.

Aim for one‑minute retrieval. During a visit, being able to produce documents in seconds sets the tone and keeps the inspection focused on work conditions, not paperwork.

Downloads, Online Filing, And Help

  • Form 1000, English and French, Central Forms Repository. The page confirms that the form must be at the project while the employer is working and flags Adobe Reader requirements.
  • File a work notice hub, submit online with a My Ontario account. This covers Notices of Project, suspended work platforms, and other notices, and explains fax plus original‑mail rules where applicable.
  • Suspended work platform notice, 016‑0080 online, 48 hours before first use, with on‑site posting.
  • Diving operations notice, at least 24 hours before the operation, with details on oral and written notice and emergency exceptions.

Quick FAQ

 What exactly is Ontario Form 1000

It is the Registration of Constructors and Employers Engaged in Construction. Every constructor and every employer engaged in the project must complete it before work begins, and a signed copy must be kept at the site while that employer is working.

 Is “Appraisal Form 1000” the same thing

No. In some industries, people use “Form 1000” to describe unrelated appraisal documents. Ontario’s Form 1000 is specific to construction projects under the Occupational Health and Safety Act and O. Reg. 213/91.

 Do I submit Form 1000 to the ministry

No. Keep it at the project while you are working. The Notice of Project, if triggered, is submitted to the ministry, either online, at the nearest office, or by fax with a mailed original.

 Do delivery drivers need to hand a copy to the constructor

The ministry accepts that suppliers and delivery personnel can keep their Form 1000 in their trucks and show it to an inspector on request during short visits. Coordinate with the constructor so everyone is inspection ready.

One‑Page Compliance Checklist

  • Confirm whether the project triggers a Notice of Project under section 6, check cost and technical triggers.
  • File the Notice of Project online with My Ontario or at the nearest office, and if you fax, mail the original signed copy. Post or keep it available at the site.
  • Complete a signed Form 1000 for the constructor and for every employer, then keep each copy at the project while that employer is working.
  • Calendar special notices, diving at least 24 hours before, suspended work platform at least 48 hours before first use.
  • Keep your packets tidy and retrievable in under one minute.

How Accountably Fits, Lightly

If your accounting or operations team supports multiple Ontario projects and you want clean document control, standard names, and version tracking for site packets, Accountably can help with the back‑office structure. Our work focuses on disciplined SOPs, checklists, and review protection so your site leads always have the right document at the right time. Use us where it adds control, then keep your field teams focused on building, not chasing forms.

Final Word

You do not need a bigger binder, you need a simple system. Complete and sign Form 1000 for every employer, keep it at the project, and if your job hits section 6 triggers, file the Notice of Project before you start and post or keep a copy on site. Put the 24‑hour and 48‑hour special notices on your look‑ahead. Keep your packet tight and reachable in a minute. That is how you turn a nerve‑racking site visit into a routine check.

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