Work of Minor Nature: When a SWMS Is Not Required

Under the WHS Regulation 2025, there is a narrow exemption from certain principal contractor obligations for construction work that is considered to be of a minor nature. This exemption sits within the principal contractor framework — specifically, the provisions that require the client or PCBU commissioning construction work above a prescribed threshold to appoint a principal contractor and for that principal contractor to carry out certain duties such as preparing a WHS management plan.

Here is the critical distinction that most tradies get wrong: this exemption relates to the appointment of a principal contractor, NOT to the requirement to prepare a SWMS. The requirement to prepare a SWMS is determined entirely by whether the work involves high-risk construction work as defined in Schedule 1 of the Regulation. Minor-nature status has no bearing on the SWMS requirement.

The concept of work of a minor nature applies to the obligations around principal contractor appointment on construction projects valued at $250,000 or more. Work of a minor nature is defined, in broad terms, as testing, maintaining, or repairing a building or structure where the work does not involve any of the 18 categories of high-risk construction work.

This definition has three parts that must ALL be satisfied. First, the work must be testing, maintaining, or repairing — not new construction, not structural alteration, not demolition. Second, it must involve a building or structure, not greenfield civil works or a non-building asset. Third, and most importantly, the work must not involve any HRCW category. If any one of the 18 HRCW categories is triggered — even one — the work is not of a minor nature, and all SWMS requirements apply in full.

Safe Work Australia's guidance on this point is clear. The minor nature exemption is narrow and intentionally restrictive. It is designed for genuinely low-risk maintenance tasks, not as a loophole for avoiding safety documentation on any work that happens to be brief or simple.

These are examples of construction work that would typically qualify as work of a minor nature — meaning a principal contractor does not need to be appointed solely on this basis, and SWMS is not specifically required for these activities (though a general risk assessment or JSA is still good practice and remains part of the PCBU's primary duty of care).

Replacing a light switch or power point at ground level. This is maintenance of an existing building, performed at ground level, with no work on or near energised electrical installations because the circuit is isolated at the switchboard before work begins. No HRCW category is triggered. The work is genuinely minor in nature.

Painting an interior wall at ground level. Maintenance of an existing building, no heights involved, no structural work. The painter is using a roller and brush at floor level with step stools below 2 metres where necessary. No HRCW category applies.

Fixing a leaking tap or replacing a tap washer. Plumbing maintenance on an existing fixture, performed at ground level, no excavation, no work on pressurised mains above the isolation point. No HRCW category is triggered.

Patching a small section of plasterboard at ground level. Repair to an existing non-load-bearing wall, no structural elements involved, no heights, no demolition. This is minor repair work.

Replacing a door or door hardware. Maintenance of an existing building component, performed at ground level. No HRCW category applies.

Replacing internal door handles, cabinet hinges, or drawer runners. Genuinely minor joinery maintenance at ground level with no structural impact.

Replacing ceiling-mounted smoke detector batteries using a standard step stool below 2 metres. Maintenance, no HRCW trigger.

The pattern is consistent: ground level, non-structural, maintenance or repair, with no element of the work that falls into any HRCW category. These are genuinely low-risk tasks where the overhead of a formal SWMS would be disproportionate to the risk. The minor nature classification exists to prevent the SWMS system from collapsing under the weight of trivial paperwork for trivial tasks.

These are examples where tradies commonly assume the work is minor — but it is not. A SWMS is required because at least one HRCW category is triggered.

Replacing a light fitting in a ceiling void accessed from a ladder at 2.5 metres. The work involves a risk of falling more than 2 metres (Schedule 1 falls category). A SWMS is required. It does not matter that the task itself seems simple or that the electrician has done it a thousand times — the height triggers the requirement. In Victoria, the threshold under the OHS Regulation 2017 is 2 metres (consistent with the national model), though Victoria uses the language of 'employer' and 'employee' rather than 'PCBU' and 'worker'. In South Australia, the threshold changes from 3 metres to 2 metres on 1 July 2026.

Painting exterior walls from scaffold at 3 metres. Working at heights above 2 metres. Even though the task is just painting, the scaffold height means this is HRCW. A SWMS is required.

Excavating a trench for a new stormwater pipe at 1.8 metres deep. Excavation deeper than 1.5 metres triggers the excavation category. The trench depth — not the length or purpose — is the trigger. A sole trader plumber installing a stormwater line for a residential client still needs a SWMS.

Removing a load-bearing wall during a kitchen renovation. This is structural alteration or repair that involves a risk of structural collapse. Removing a load-bearing wall without engineering assessment and an activity-specific SWMS is both illegal and dangerous. This is the exact scenario that cost a residential renovation business a prosecution in 2022.

Replacing a hot water system that involves working on pressurised gas lines. Work involving gas distribution mains or piping triggers the pressurised gas HRCW category. The plumber needs a SWMS even for a 'simple' hot water unit replacement.

Clearing asbestos-containing materials during a bathroom renovation in a pre-2003 house. Any work involving the likely disturbance of asbestos is HRCW. Even disturbing asbestos sheeting during a renovation requires a SWMS and, depending on quantity and type, a licensed asbestos removalist under the Asbestos Code of Practice.

Accessing a roof cavity for air-conditioning maintenance where the access involves working at 2.5 metres. The maintenance task itself may be quick, but the access to get there triggers the falls category.

The lesson: it is not the complexity of the task or the time it takes that determines whether a SWMS is needed. It is whether any HRCW category is triggered by any part of the work. A five-minute task at 3 metres height needs a SWMS. A five-day task at ground level on a single-storey building may not.

Follow this decision tree to determine whether your work requires a SWMS. This tree is deliberately conservative — when the answer is 'maybe', the safer conclusion is always to prepare the document.

Question 1 — Is the work construction work? Construction work includes building, renovating, altering, converting, fitting out, commissioning, decommissioning, demolishing, dismantling, or maintaining a structure, as well as civil works, landscaping if part of construction, and installation of building services. The definition in Regulation 289 is broad. If the answer is no — the work is not construction work — a SWMS is not required under the HRCW provisions (but a JSA or risk assessment may still be appropriate under the general duty of care in Section 19 of the WHS Act).

Question 2 — Does the work involve any of the 18 HRCW categories? Review all 18 categories in Schedule 1 of the WHS Regulation 2025. The categories cover: falls above 2 metres, telecommunication tower work, load-bearing demolition, likely asbestos disturbance, structural alterations requiring temporary support, confined space entry, excavation deeper than 1.5 metres, tunnelling, explosives, pressurised gas mains, chemical and fuel lines, energised electrical installations, contaminated or flammable atmospheres, tilt-up and precast concrete, traffic corridor work, powered mobile plant, artificial temperature extremes, and work in or near water involving drowning risk. If ANY category is triggered — even one — a SWMS is required. Stop here and prepare your SWMS.

Question 3 — If no HRCW category is triggered, is the work being done on a project where a principal contractor has been appointed? If yes, the PC may still require a documented safe system of work, a JSA, or a site-specific risk assessment as a contractual condition, even though a SWMS is not legally mandated. Contractual conditions can and often do exceed the legal minimum. This is a valid exercise of the PC's coordination duty.

Question 4 — If no HRCW is triggered and no PC requires documentation, do you still want to document the safety plan? Best practice says yes. A JSA or risk assessment demonstrates due diligence and creates evidence that you assessed the risks. If something goes wrong, having documentation — even when it was not legally required — protects you during a WorkCover investigation or civil claim.

The golden rule: when in doubt, prepare a SWMS anyway. The penalty for having an unnecessary SWMS is zero. The penalty for not having a required one can reach hundreds of thousands of dollars for an individual and millions for a body corporate. The cost of preparing one using a guided digital builder is five minutes of your time.

Some tradies treat the minor nature exemption as a blanket excuse to avoid SWMS preparation altogether. This is a dangerous misunderstanding that has led directly to prosecution after incidents on small jobs.

The exemption is narrow by design. It applies only to testing, maintaining, or repairing — not to new construction, not to demolition, not to alteration. A kitchen renovation that involves structural work is not maintenance. A bathroom strip-out that uncovers asbestos is not repair. An electrical upgrade that requires working on live installations is not testing. Tradies who misclassify substantive work as 'minor maintenance' to avoid paperwork are creating an evidentiary record that works against them if an incident occurs.

The exemption does not remove general duties. Even if work qualifies as minor nature and no SWMS is specifically required, the PCBU still has a general duty under Section 19 of the WHS Act 2011 to ensure, so far as is reasonably practicable, the health and safety of workers. The absence of a SWMS requirement does not mean the absence of a safety obligation. A JSA, risk assessment, or other documented plan may still be necessary to satisfy that duty, and in practice is often the difference between a defensible decision and a negligent one.

Regulators look at outcomes, not labels. If a worker is injured performing work that was classified as 'minor nature' but actually involved HRCW, the regulator will not accept 'we thought it was minor' as a defence. They will look at what the work actually involved, determine whether any HRCW category was triggered, and prosecute accordingly. The SafeWork NSW and WorkSafe Victoria inspection approach is consistent on this point: classification is assessed on the actual facts of the work, not on the contractor's description of it.

Principal contractors also look critically at minor-nature claims. A PC who accepts a subcontractor's assertion that a task is minor without verifying the absence of HRCW triggers is exposing themselves to a coordination failure. Experienced PCs require at minimum a short written justification from subcontractors who claim minor-nature status on a task that involves any height, excavation, or energised service.

The safe approach is straightforward. If there is any doubt about whether the work is genuinely minor — prepare a SWMS. Five minutes of preparation now versus months of legal proceedings after an incident is not a difficult calculation. Modern digital builders make it easier than ever: select your trade, review the pre-loaded hazards, customise for your site, and generate the document.

Residential maintenance is where the minor-nature classification is most frequently misapplied. The assumption that 'it is just a house' leads tradies to dismiss SWMS requirements that apply regardless of the type of building.

Residential buildings are treated identically to commercial buildings for SWMS purposes. The WHS Regulation does not distinguish between a domestic property and a commercial premises when determining whether HRCW is being performed. A roofer on a single-storey house at 3 metres is doing HRCW. A plumber excavating a trench at 1.7 metres in a suburban backyard is doing HRCW. An electrician accessing an occupied house's ceiling cavity at 2.5 metres for a downlight install is doing HRCW.

The reason tradies get this wrong is that residential clients — homeowners — rarely ask about SWMS. A commercial client with a safety team will require a SWMS before allowing access. A homeowner typically does not know what a SWMS is and will not ask. The absence of pressure from the client does not change the legal obligation. The obligation runs from the tradie's status as a PCBU, not from the client's expectations.

Residential maintenance also frequently involves unknown conditions. A plumber called to a leaking pipe may discover asbestos-containing cement sheet around the pipe once the wall is opened. An electrician rewiring a 1960s house may find that the access pathway to the ceiling void crosses an unguarded stairwell at 3 metres. These unknowns mean the scope of work can escalate from 'minor maintenance' to HRCW in a matter of minutes. A prudent tradie prepares a SWMS based on realistic scope rather than the optimistic 'should be quick' scope quoted to the client.

For sole traders and small residential contractors, a standard template SWMS covering the trade's typical HRCW scenarios, customised on site for each job, is the most efficient approach. This is far faster than preparing a new SWMS from scratch for every residential job and ensures no site gets missed because the job 'looked minor' from the quote.

Even where work genuinely qualifies as work of a minor nature and a principal contractor is therefore not required under the project-threshold provisions, several other obligations continue to apply without change.

General duty of care under the WHS Act 2011. Every PCBU must ensure, so far as is reasonably practicable, the health and safety of their workers and others affected by the work. This duty applies to every task, regardless of scale or duration. Minor-nature work still requires hazard identification, risk assessment, and control measures — it simply does not require them in the specific SWMS format.

Worker consultation under Part 5 of the WHS Act. Consultation with workers on matters that affect their health and safety is required regardless of whether a SWMS is being prepared. A maintenance task that does not trigger HRCW still requires the PCBU to consult with workers about the risks and controls.

Licensing and competency requirements. Electrical work still requires a licensed electrician. Plumbing work still requires a licensed plumber. Work with asbestos still requires appropriate training and, for friable asbestos, a licensed removalist. The minor-nature classification does not provide an exemption from trade licensing or high-risk work licences.

Insurance and public liability obligations. Public liability insurance, workers compensation, and contractual insurance requirements are unaffected by whether a SWMS is required. A tradie performing minor-nature work who damages property or injures a third party is exposed to exactly the same civil liability as one performing HRCW.

Asbestos, lead, and hazardous substances codes. Codes of Practice for asbestos, lead, and hazardous substances apply whenever those materials are present, regardless of whether the broader work triggers the HRCW SWMS requirement. A minor maintenance task that disturbs asbestos still requires an asbestos-specific control plan and competent worker training.

Client contract conditions. Many commercial and government clients impose contract conditions that require documented safety planning for all work, regardless of HRCW status. These contractual conditions can and often do exceed the regulatory minimum. Tradies working on government-procured maintenance contracts, airport precincts, rail corridors, or defence establishments should assume that higher contract-level documentation will be required even for genuinely minor tasks.