01

Registration of Constructors and Employers Engaged in Construction

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

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

03

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

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

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

06

28-Day Prompt Payment 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

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

08

60-74 Day Holdback Payout 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

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

10

Construction Act Section 27.1 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

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

12

Notice of Non-Payment Prompt Payment Control

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

13

Change-Order Documentation Compliance

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

14

Construction Lien Risk Tracking

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