Most Alberta employers first meet the Occupational Health and Safety Code the hard way. An officer shows up, a prime contractor asks for documentation, or a client's prequalification form asks which Parts of the Code your program addresses. At that point the Code stops being an abstraction and starts being a list of things you either have or do not have.
This is a plain explanation of what the Code is, how it is organized, and what it actually asks of you as an employer.
The Code is one of three pieces, not the whole system
Alberta's workplace safety law comes in three parts, and they do different jobs.
The OHS Act sets the general obligations. This is where the broad duties live: every employer must, as far as reasonably practicable, ensure the health, safety and welfare of workers and other people at or near the work site, ensure workers know their rights and duties, and put a system in place to make sure the legislation is being followed. The Act is the "what you owe people" layer.
The OHS Regulation is the smallest of the three. It defines terms used in the Act and Code and authorizes the Minister to establish certain programs.
The OHS Code is the technical layer. It is where the general duty in the Act turns into specific, checkable requirements: what height triggers fall protection, how hazardous energy must be controlled, what a confined space entry requires. When someone says a site is "not code compliant", this is almost always the document they mean.
Most employers searching for "the Alberta OHS Code" are really asking about all three. It helps to know which one you are being held to, because the Act sets the duty and the Code sets the standard.
How the Code is organized
The Code runs to more than 40 Parts. Each Part covers one hazard area or one class of work. You are not expected to know all of them. You are expected to know the ones your people are exposed to.
For most construction and trades employers, the Parts that carry the day-to-day weight are:
- Part 2, Hazard Assessment, Elimination and Control — the backbone of the whole Code
- Part 9, Fall Protection
- Part 15, Managing the Control of Hazardous Energy
- Part 18, Personal Protective Equipment
- Part 19, Powered Mobile Equipment
- Part 23, Scaffolds and Temporary Work Platforms
- Part 5, Confined Spaces
- Part 6, Cranes, Hoists and Lifting Devices and Part 21, Rigging
- Part 32, Excavating and Tunnelling
- Part 11, First Aid
- Part 27, Violence and Harassment
Part 2 deserves special mention. Hazard assessment is the requirement that connects everything else together, because it is how you demonstrate you identified a hazard before it hurt someone rather than after. When a program fails an audit or an investigation goes badly, the gap is very often here rather than in a technical Part.
What a requirement actually looks like
It is worth seeing one in full, because the Code is more specific than most people expect.
Part 9 requires an employer and a supervisor to protect a worker from falling where the worker may fall three metres or more, or less than three metres if there is an unusual possibility of injury, or into or onto a hazardous substance or object, or through an opening in a work surface. At a permanent work area, the threshold drops to more than 1.2 metres.
It goes further than stating a height. The Code sets an order of preference: install a guardrail, and only if a guardrail is not reasonably practicable move to a travel restraint system. And if a worker may fall three metres or more and is not protected by guardrails, the employer must develop procedures in a written fall protection plan for that site.
That is the pattern across the Code. A trigger, a required control, a preferred order of controls, and usually a documentation obligation attached. Knowing the height is not compliance. Having the plan, the equipment, the training and the records behind it is.
What changed most recently
The Code was amended by Alberta Regulation 202/2024, in force December 4, 2024, and Alberta Regulation 210/2024, in force December 10, 2024. The substantive updates landed in Part 27 (Violence and Harassment), Part 33 (Explosives) and Part 37 (Oil and Gas Wells), alongside editorial amendments throughout.
There was a transitional window between December 4, 2024 and March 30, 2025 where employers could comply with either the old or the new provisions. That window closed. Since March 31, 2025, the updated provisions are the ones you are held to.
Most of these changes were administrative: removing duplication, clarifying wording, and updating technical standards to match practices and equipment industry had already adopted. Several also bring Alberta closer to other provinces, which makes life easier for employers working across jurisdictions. None of that makes them optional.
An earlier round of updates took effect March 31, 2023, covering first aid (Part 11), hazardous energy (Part 15) and noise exposure (Part 16). If your program documentation has not been reviewed since before then, it is now two amendment cycles out of date.
Where employers actually get caught
Almost nobody gets into trouble for not owning a copy of the Code. They get into trouble for one of these:
The program does not match the work. A binder written for a previous scope of work, or bought as a template, that references hazards the crew does not face and misses the ones they do.
The documentation does not exist when it is asked for. Hazard assessments that were done verbally, training that happened but was never recorded, inspections with no paper trail. If it was not written down, you cannot prove it happened.
The program was never updated after the Code was. This is the quiet one. The program was compliant when it was written and nobody revisited it after 2023 or after March 2025.
The Code is not difficult to comply with. It is difficult to comply with continuously, while running a business, without someone whose job it is to watch for changes.
If you are not sure your program reflects the current Code, that is worth checking before a client or an officer checks it for you. Salient helps Alberta employers build and maintain health and safety programs that hold up under scrutiny and stay audit-ready for COR. Book a discovery call and we will tell you honestly where you stand.