The Commission des normes, de l’équité, de la santé et de la sécurité du travail (CNESST) is responsible for overseeing workplace health and safety regulations in Quebec. Here’s a breakdown of your questions on annual reporting requirements for joint health and safety committees:
Authority:

• Act respecting occupational health and safety (S-2.1): This act establishes the framework for workplace health and safety in Quebec, including the requirement for a prevention program and a health and safety committee (if applicable).
• Regulation respecting health and safety committees (S-2.1, r. 5): This regulation details the specific requirements for joint health and safety committees, including annual reporting.

Division VI of the Regulation:
This division specifically addresses the annual report of activities for joint health and safety committees.
Reporting Requirements (S-2.1, r. 5, s. 34):

• Deadline: The report must be submitted to the CNESST before March 31st of each year.
• Reporting Period: The report covers activities from January 1st to December 31st of the previous year.
• Content: The report must include the following information:
  • Identification of any certified associations represented on the committee.

Template:
The CNESST does not provide a specific template for the annual report. However, the regulation outlines the required information. You can develop a report format that clearly presents this information.
When the Requirement Came into Place:
It’s difficult to pinpoint the exact date this requirement came into effect. The Regulation respecting health and safety committees went through several amendments over time. However, the current structure, including Division VI, likely came into force after October 22nd, 1983, as per section 327 of the Act respecting occupational health and safety (S-2.1).
Missing the Deadline:
The consequences of missing the deadline for submitting the annual report are not explicitly stated in the regulation. However, it’s important to comply with health and safety regulations to ensure a safe work environment. The CNESST may contact you to request the report or take further enforcement actions in case of repeated non-compliance.
Recommendation:

• It’s advisable to develop a system to ensure timely submission of the annual report.
• You can consult the CNESST website or contact them directly for further guidance on the annual report or other health and safety regulations: https://www.cnesst.gouv.qc.ca/fr