Canadian Association of Diving Contractors

The Canadian Association of Diving Contractors (CADC) is leading a renewed national initiative to harmonize occupational diving safety standards across all provinces, territories, and the federal government. This effort—known as the Harmonization Project—aims to bring Canada’s diving industry under one consistent, modern, and enforceable safety framework based on the CSA Z275 Diving Standards.

Commercial diving plays a vital role in the Canadian economy, supporting marine construction, infrastructure maintenance, aquaculture, environmental work, scientific research, and emergency response. Despite the national scope of these operations, the rules governing diver safety vary widely. Canada currently has 13 different regulatory systems, creating inconsistencies in requirements, training recognition, enforcement expectations, and labour mobility.

CADC is working with regulators and stakeholders to complete the work started in the 1990s and move Canada toward a unified national standard.

Why Harmonization Matters

1. Consistent Safety Across Canada

Commercial diving remains one of the highest-risk occupations in the country. The CSA Z275 series provides clear, detailed, and technically validated requirements for safe diving operations. A harmonized national system ensures these protections apply equally everywhere.

2. National Recognition of Competency

The CSA Z275.4 competency standard ensures divers, supervisors, tenders, and hyperbaric physicians meet a consistent level of training and experience. Harmonization removes barriers to interprovincial mobility and strengthens the professionalism of the workforce.

3. Modern, Efficient Regulation

A unified approach eliminates duplicated provincial efforts and removes outdated or conflicting requirements. By adopting the latest CSA standards, jurisdictions gain access to a modern national framework updated regularly by experts from industry, labour, government, and technical fields.

4. Stronger Legal Clarity

Under Canada’s Criminal Code, employers must take reasonable steps to protect workers. CSA standards provide a clear definition of these obligations and support consistent enforcement and due-diligence expectations across jurisdictions.

How Canada Can Implement Harmonization

Transitioning to a national standard does not require rewriting every provincial regulation. Jurisdictions can adopt the CSA standards through:

• Direct incorporation by reference in OHS regulations

• Adoption through enforceable codes of practice

• Updating older CSA references to the latest editions

These approaches maintain provincial authority while establishing a unified national safety baseline.

Completing a National Effort 30 Years in the Making

The foundation for harmonization was established during the 1997 National Harmonization Project. That work identified the CSA Z275 standards as the clear, consensus-based solution for a unified Canadian diving safety regime.

Today, CADC is advancing this initiative with renewed urgency. The industry, regulators, and technical experts are aligned in recognizing the benefits of a modern, harmonized approach.

Bringing all jurisdictions under one set of national standards will:

• improve safety,

• enhance mobility,

• reduce administrative duplication,

• strengthen accountability, and

• support a more competitive, professional industry.

CADC will continue working with government partners and industry stakeholders to advance this important national initiative.