# Ontario compliance records for contractor administration.

01

## [Registration of Constructors and Employers Engaged in Construction](https://ontariotraderegistry.ca/compliance/wsib-form-1000/)

Before beginning work at a construction project. The form is not submitted to the Ministry, but must be kept at the project while the employer is working there.

02

## [Employer's Report of Injury/Disease](https://ontariotraderegistry.ca/compliance/wsib-form-7/)

WSIB must receive the complete employer accident report within three business days after the employer learns of the reporting obligation.

03

## [Notice of Project](https://ontariotraderegistry.ca/compliance/mol-notice-of-project/)

Before construction begins on projects meeting section 6 triggers, including projects expected to exceed $50,000 in labour and materials, or $250,000 for projects confined to automobile manufacturing or assembly factories.

04

## [Joint Health and Safety Committee Requirement](https://ontariotraderegistry.ca/compliance/ohsa-joint-health-safety-committee/)

Establish and maintain a JHSC when the workplace threshold applies. Most workplaces with 20 to 49 workers require at least two JHSC members; 50 or more require at least four.

05

## [Proper Invoice Deficiency Notice](https://ontariotraderegistry.ca/compliance/proper-invoice-deficiency-notice/)

Written deficiency notice must be delivered within 7 days of receipt when disputing invoice form or structure.

06

## [28-Day Prompt Payment Timeline](https://ontariotraderegistry.ca/compliance/prompt-payment-28-day-timeline/)

Track the 28-day owner payment timeline from receipt of a proper invoice unless the Act permits a valid notice response.

07

## [Form 6 Annual Holdback Release](https://ontariotraderegistry.ca/compliance/form-6-annual-holdback-release/)

For contracts extending beyond one year, publish Form 6 within 14 days after each contract anniversary.

08

## [60-74 Day Holdback Payout Window](https://ontariotraderegistry.ca/compliance/holdback-release-day-60-74-window/)

After Form 6 publication, payment of accrued basic holdback must be tracked for day 60 through day 74 when no liens are preserved.

09

## [ODACC 90-Day Adjudication Deadline](https://ontariotraderegistry.ca/compliance/odacc-adjudication-90-day-deadline/)

Track the 90-day post-completion, abandonment, or termination adjudication window for eligible disputes.

10

## [Construction Act Section 27.1 Repeal](https://ontariotraderegistry.ca/compliance/construction-act-section-271-repeal/)

Do not rely on the former section 27.1 notice-of-non-payment mechanism to refuse holdback for deficient or incomplete work.

11

## [Substantial Performance Payment Closeout](https://ontariotraderegistry.ca/compliance/substantial-performance-payment-closeout/)

Track substantial performance publication, deficiency closeout, invoice intake, and holdback release events in one administrative window.

12

## [Notice of Non-Payment Prompt Payment Control](https://ontariotraderegistry.ca/compliance/notice-of-non-payment-prompt-payment/)

Track notice of non-payment steps and downstream communication windows when a payer disputes payment after receiving an invoice.

13

## [Change-Order Documentation Compliance](https://ontariotraderegistry.ca/compliance/change-order-documentation-compliance/)

Document changed work before billing, including directive date, backup, approval authority, and invoice connection.

14

## [Construction Lien Risk Tracking](https://ontariotraderegistry.ca/compliance/construction-lien-risk-tracking/)

Track lien-risk status before annual holdback release, final holdback release, and closeout payment events.

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Source: https://ontariotraderegistry.ca/compliance/