Guidance note A
Applying the Hierarchy of Control
At all times, regardless of the level of risk, we are required to do what is reasonably practicable to
eliminate or minimise the risk of any hazard with the potential to cause harm.
Control measures are the things we do to eliminate or lower the level of risk.
The types of control measures are categorised according to the ‘hierarchy of control’. Controls should
be considered and used in this preferred order.
Hierarchy of Control
Most
effective
(High level)
Elimination: remove the hazard completely from the workplace or activity
Substitution: replace a hazard with a less dangerous one (e.g. a less hazardous
chemical)
Redesign: making a machine or work process safer (e.g. raise a bench to reduce
bending)
Isolation: separate people from the hazard (e.g. safety barrier)
Administration: putting rules, signage or training in place to make a workplace safer
(e.g. not mowing near people, painting trip hazards)
Least
effective
(Low level)
Personal Protective Equipment (PPE): Protective clothing and equipment (e.g.
gloves, lab coats/overalls, enclosed leather shoes)
Higher level controls are considered more effective and are therefore preferred, because they eliminate
or reduce the risk of harm for everyone at all times. Lower level controls are less preferred because,
essentially, the risk of harm still exists and they require people doing the right thing to provide an
element of safety.
If lower level controls are to be implemented instead of higher level controls, it is important that the
reasons behind the decision are explained. The following table provides options and examples to guide
you in applying the hierarchy of control to your risk management process:
Guidance note A
Controls
Applying the Hierarchy of Control
Options
Examples of Hierarchy of Control
Elimination
 Eliminate the use of the
substance
 New risk assessment
required
 Find alternative process that removes the need for the chemical or eliminate an activity
that increases the risks.
 Use a physical process instead of a chemical process e.g. using ultrasound to clean
equipment instead of a process involving chemicals; using clips/bolts or nails instead
of adhesive.
Substitution
 Use a safer substance
or a safer form of the
substance
 New risk assessment
required
 Find less dangerous material to use - use detergent instead of chlorinated solvent for
cleaning, use water-based chemicals instead of solvent-based, use less hazardous
chemicals where compatible to the task.
 Use safer form (e.g. pellets vs. powder) or process – paint with a brush instead of
spraying, purchase a substance in a safer form.
Reduction
 Reduce amount stored
 Ensure the smallest possible volumes are purchased and stored for effective
operation.
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Chemical Use Activity Guidance Notes — Page 1 of 10
Guidance note A
Controls
Applying the Hierarchy of Control
Options
Examples of Hierarchy of Control
Isolation
 Separate people or
property from the
substance by distance
or barriers
 Separate safety
cabinet/ cupboard/
shelf/separate spill
trays/Fire separation
(>5 m)/Space
separation (> 3m)
 Consider separation from other dangerous goods (see
http://www.deir.qld.gov.au/workplace/subjects/hazardousmaterials/incompatible/isolati
on/index.htm#compatible for guidance.
 Use closed systems.
 Isolate the process to one room with restricted access or use appropriate
barriers/screens to separate substances.
 Distance workers from substances/processes through the use of remote controls.
 Distance property, incompatible chemicals and ignition sources (e.g. flames, sparks)
from goods.
Separation
 Separation from ignition
sources
 Use of storage cabinets
 Consider ignition sources – flames, electrical fittings, static, friction.
 Classes and Subsidiary Risks 2.1, 3, 4, 5 and Combustible Liquids at least 5 metres
from all ignition sources and naked flames.
 Separation from incompatible substances.
Engineering
 Use physical controls
(such as plant/
equipment) that
eliminate or reduce the
generation of
substances; suppress
or contain substances;
or limit the area of
contamination in the
event of spills and leaks
 Use bunding/trays/appropriate material for containers to contain spillage.
 Use local exhaust or natural ventilation systems (e.g. air ducts, open doors/windows),
general ventilation/local exhaust ventilation/regular compliance/inspection of fume
hoods undertaken.
 Fully or partially enclose the process with exhaust extraction/use fully or partially
enclosed ventilation booths.
 Register of chemicals with special storage requirements kept to maintain regular
inspection and recording.
 Fire detection and suppression/compliance inspection of fire systems undertaken.
 Flammable and gas generating substances kept in spark-free refrigeration.
 Electrostatic control/vapour control.
 Keep under a nitrogen/water/kerosene/paraffin blanket.
 Temperature control.
Administrative
 Use safe work practices
including good
housekeeping.
Regularly review work
procedures
 Ensure induction and
training has been
undertaken and records
are maintained
 Regular Inspection of storage area undertaken (e.g. checklist).
 Advisory signs for storage locations, hazard ID, emergency.
 Instruct employees on how to use substances safely Train staff in use of fire
equipment and emergency procedures.
 Mark receipt and expiry dates noted on containers on receipt.
 Develop and establish standard procedures for safe receipting and storage of new
stock.
 Reduce the amount of property or the number of employees exposed/keys not
available to all staff/storage is secured at all times/authorised persons only.
 Training records kept. Safety instructions continually enforced.
 Ensure safe interim storage of wastes/products (e.g. labelled properly in suitable
containers stored away from people, the environment, incompatible chemicals, ignition
sources, etc).
 Provide first aid facilities/provide suitable washing facilities/fire extinguishers.
 Cover containers and make sure lids are attached.
 Clean up spills immediately (includes provision of suitable aids, equipment and isolate
floor and storm water drains, avoid dust).
 Ensure no eating, drinking or smoking in areas where substances are used.
Supervision
 Untrained/unqualified staff are supervised at all times or access is restricted
Personal
Protective
Equipment
(PPE)
Provide protective clothing
and equipment for
employees, supervisors
and visitors.
NB: items must be
compatible with
chemical(s) being used/
stored




Overalls, aprons, gowns, chemical resistant suits.
Footwear (enclosed leather upper shoes, safety boots) gloves.
Chemical resistant glasses (safety glasses).
Face shields/masks, respirators, full/partial head protection.
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Chemical Use Activity Guidance Notes — Page 2 of 10
Guidance note B
Hazard Management - Control Measures
Listed below are some indicative hazards/risks and suggested control measures for operations
undertaken with chemicals. They are by no means exhaustive lists. There may be other non-chemical
hazards associated with the activity. Add details of any other hazards/risks or additional controls you
intend to implement in your risk assessment. Refer to the product Safety Data Sheet (SDS) for specific
chemical hazards and control measures. For any items not applicable, please tick N/A. [Preferred
control measures should be implemented in accordance with the hierarchy of control. If lower level
controls (such as Administrative or PPE) are to be implemented instead of higher level controls (e.g.
elimination, substitution, engineering controls), it is important that the reasons are explained]. For
general information regarding curriculum risk management, refer to Managing Risks in School
Curriculum Activities.
All persons engaging in this activity should:

identify the hazards, including any additional hazards not mentioned here

assess their significance manage the potential risks.
Physical Chemical Risks
Chemical
Hazards/Risks
Health Hazards
Suggested Control Measures




Physical Hazards
 Reactivity
 Stability
 Fire/Explosion
 Fume/Vapour
build up
 Hazardous reaction
 Uncontrolled
reaction
 Odours
 Hazardous
by-products








Environmental
hazards
 Spills
 Leaks
 Contamination





This is the safest material available to achieve the desired result.
A current SDS for the material is referred to, and all its requirements are complied with.
The minimum amount of the material at the weakest possible dilution to achieve the
desired outcome will be used.
Management processes including [provide details]are established for handling,
distribution and control during activities.
All conditions for the safe management of the work area are met (refer to relevant SDS,
SOP and workplace guidelines), especially as relates to the safe handling, use and
storage of the chemical or work process.
All containers storing the material are suitably labelled.
Adequate ventilation is provided (especially for volatile, combustible materials).
All recommendations regarding the management of physicals hazards listed on the
SDS are adhered to.
All extraction equipment (fumes/dust) are fitted and in operational order.
Work procedures that minimise the generation of dust/gas/vapour/spray or fumes are
used.
All incompatible chemicals are kept segregated to avoid cross contamination or
hazardous reaction (do not store fuel near fertilizers, herbicides with
pesticides/fungicides and DG labelled reagents with incompatible classes).
The chemical product is used for the purpose specified and no unauthorised mixing of
substances occurs.
Waste disposal occurs according to direction on SDS.
Disposal method: Safe for Sewerage or Regulated Disposal or Safe for Sewerage after
neutralisation/dilution.
Containers are triple rinsed and rendered unsuitable for reuse before disposal to
industrial bin. Rinse effluent is treated as hazardous and treated accordingly.
Implement control processes to restrict the possibility of spillage and accidental contact
with chemicals, and to allow the safe containment and/or easy removal of spilled
chemicals. Such processes might include:
establish safety procedures for the preparation and use of solutions
limit the amounts of chemicals used
restrict movement around the work area
clearly and informatively label all containers of chemicals for student
use and replace the lids on containers immediately after use
have access to running water/eyewash/safety shower
before engaging in the activity, students should be informed of the appropriate
clearly identified process of dealing with substances if they are spilled.
Take care to handle and store substances in the approved manner.
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Chemical Use Activity Guidance Notes — Page 3 of 10
Chemical Handling Risks (refer to SDS for addition handling information)
Handling risks
Handling
considerations

Labelling
Suggested Control Measures



Safety Management
 Spills
 Contamination
 Supervision


Personal Protection




Work area conditions
including
environment if
working outdoors
 Weather
 Surfaces
 Surrounds
Students
 Instructions
 Experience
 Special needs
 Medical conditions
 Student numbers
 High risk
behaviour












First aid provisions



Equipment/Materials
 Sharp implements
 Glass breakages
 Plant/tools/
equipment




The SDS has been consulted to determine specific handling considerations.
Work processes are selected to prevent or minimise the risk of injuries caused by
manual tasks.
The labelling is securely attached, the product is labelled in accordance with regulations
and the product has been labelled after it has been decanted.
A current SDS for the material is referred to, and all its requirements are complied with.
Processes for pumping/decanting/dispensing/filling/diluting/using the chemical reduce
the generation of vapours/dust and minimise spills and splashes.
Ensure that appropriate cleanup equipment (spill kits, broom, dustpan and brush, glass
bin) is available.
Safe hygiene standards and processes will be maintained to ensure only safe exposure
to the material.
Suitable personal protective equipment (PPE) as described in the SDS is available,
clean and is in working order, complies with Australian Standards and is worn in
accordance with the SDS.
Appropriate enclosed footwear is worn by all participants.
All conditions for the safe management of the work area are met, especially as they
relate to the safe handling, use and storage of the material and access to safety and
emergency equipment.
All containers storing the material are suitably labelled
Sufficient clear space is available to undertake the task and nearby hazards have been
removed or controlled.
Relevant instructions on the work and safety procedures is provided to students before
they are exposed to the material, the activity including the hazardous materials being
used, safety procedures and appropriate work site safety measures.
Students have had suitable experience to use the material.
Induction and Training is provided. Safety instructions continually enforced and training
records are kept.
Student work areas should have:
o suitable ventilation for the activity
o stable work tables or benches of a suitable height for the students
o adequate room for movement of persons involved so they do not cause an
additional hazard
o access to all safety equipment.
Safety zones established to ensure that students have an adequate work area that other
students will not enter.
Refer to individual education plan/behaviour management plan or other student
documentation.
Medications and emergency responses are available for students with medical
conditions.
Emphasise need for student hygiene (hand washing, no food or drink).
Where necessary, obtain advice from relevant advisory visiting teachers or specialist
teachers.
are available and ready to use to execute planned emergency responses (e.g. ice
packs, neutralising agents, antidotes, product SDS); and
trained staff are available to administer first aid; and
workers are aware of the location of first aid facilities and who the designated first aid
officers are.
Safety instructions will be provided for the use and handling of any equipment used in
association with the material.
Establish safety zones for use of equipment.
All equipment items are maintained as required, and will be visually inspected before
use.
Clean up equipment is available [provide details].
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Chemical Use Activity Guidance Notes — Page 4 of 10
Handling risks
Electricity
 (refer to SDS for
addition handling
information)
Suggested Control Measures


Ensure Electrical Safety Guidelines are adhered to.
Implement control processes for the safe use of power, heat and/or the use of
combustible substances in any activity.
Transport Risks
Transport risks

Transport
considerations
Suggested Control Measures




Ensure products are adequately labelled and lids are securely sealed. The containers
should be firmly secured and protected from other objects striking against them during
transport.
Use trolleys or carriers to move large glass or heavy containers.
Avoid transport of chemicals in private vehicles where possible. Avoid transporting
chemicals in enclosed spaces (e.g. cabin of car or ute).
Only approved containers designed specifically for the containment of the chemical
should be used.
Storage Risks
Storage risks
Storage
Considerations
Spills
Leaks
Fire
Explosion
Fumes
Vapour build up
Hazardous reaction
Suggested Control Measures















Chemicals are stored separately to other incompatible Global Harmonised System
(GHS) divisions. Storage occurs as described in SDS. Chemical must be stored [provide
details].
Chemicals are segregated by separate storage in a safety cabinet/cupboard/shelf/same
cupboard - separate spill trays. Space separation (> 3m).
Volatile chemicals are stored away from ignition sources. Fire separation (>5 m)
Spill containment is used (bunding/use of trays) and is made of appropriate material so
as not to react with the chemical(s).
Fire detection and suppression systems are compliant and inspection of fire systems is
undertaken regularly. Staff are trained in the use of fire equipment and emergency
procedures.
Ensure all sources of ignition (sparks, naked flame, static) are removed from the work
area.
General ventilation/local exhaust ventilation is available for vapour control and regular
compliance inspection of fume hoods is undertaken.
Register of chemicals with special storage requirements is kept and regular safety
inspections undertaken.
Temperature control is observed (chemical temperature tolerances are compatible with
ambient room temperatures – refer to SDS).
Housekeeping - regular inspection of storage area undertaken (e.g. a checklist).
Advisory signs for storage locations, hazard identification and emergency information
are clear and well positioned.
Good stock control practices are used (e.g. manifests, hazardous chemical register,
receipt and expiry dates noted on containers, adequate labelling).
Storage is secured at all times. Keys not available to all staff and entry is restricted to
authorised persons only.
Chemical storage should be:
o secure from forced entry
o well ventilated, either by fan forced or by natural means
o sufficiently large so that movement is not likely to cause additional hazards.
Fit for purpose (storage should be able to cater for the various classes of hazardous
compounds, e.g. corrosive liquids (acids), flammable materials, toxic materials).
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Chemical Use Activity Guidance Notes — Page 5 of 10
Storage risks
Equipment/Materials
Storage cabinets/
shelving/plant/
tools/equipment
Suggested Control Measures

Safety instructions are provided for the use of any equipment used in association with
the substance.
 All equipment items are maintained as required, and will be visually inspected before
use.
 All conditions for the safe management of the work area are met, especially as they
relate to the safe handling, use and storage of the material.
 There is sufficient space and adequate lighting to undertake the task safely.
Outdoor activities
Waste treatment/disposal facilities.
Access to water supply for emergency first aid treatment/emergency response.
Use of trays/carriers for the transport and storage of chemicals.
Emergency response A Chemical Spill Kit is available:
 the spill kit contains materials appropriate to type of chemical being used; and
 a spill response procedure is available and personnel are trained in its use; and
 staff and students are aware of the spill kit location.
In case of an uncontrolled release (e.g. spill, explosion) an emergency response plan has
been established, and the necessary resources are readily available to execute the plan.
General hazards
Hazard
General hazards
Contact
Collision
Slip
Fall
Impact
Moving parts
Noise
Posture
Sharps
Weather
Surfaces
Surrounds
Recommended Control Measures



Physical hazards

Breakage/rupture
(e.g. glass, plastic) 
spills, splashes


Physical injury
Breaks/sprains

Cuts and grazes
Concussion
Accidental contact
Chemical burns
Skin/eye/
respiratory irritation
Absorption
Injury
Visual
Temperature
Fatigue
Dehydration
Ensure that a venue is selected which is appropriate to the activity, taking into
consideration the following:
o working space
o access to emergency facilities and safety equipment
o ventilation.
Ensure environmental conditions are suitable for the activity (e.g. light levels, wind
speed and direction, terrain).
Inspect equipment for cracks and damage before use.
Do not heat or cool materials quickly.
Ensure that appropriate clean-up equipment (broom, dustpan and brush) is available.
Ensure that appropriate decontamination materials are available in cases of spillage of
hazardous materials. Label information and SDS information should give details of the
type of decontamination material required for each chemical.
Ensure that everyone handles materials and equipment carefully.
Provide instruction in the form of demonstration, rules, standard operating procedures,
prerequisite skills and emergency response before students undertake the activity.
Ensure that students wear appropriate PPE including enclosed footwear and sun
protection where required.
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Chemical Use Activity Guidance Notes — Page 6 of 10
Hazard
Recommended Control Measures
Electrical/heating
hazards
Burns
Voltage
Current
Cold
Heat
Shock




Ensure Electrical Safety Guidelines are adhered to.
Safety switches have been installed and tested.
Equipment is visually inspected before use.
Equipment has been tested (where appropriate) and is in good repair.
Heat sources
Hot plates
Flames
Friction
Conduction
Radiation
Welding
processes
Kilns, ovens, or
incubators
Exo- or
endothermic
reactions

Implement control processes for the safe use of heat and/or the use of combustible
substances in any activity. Such processes might include:
o keeping burners on low heat while not directly using them
o keeping combustible substances a specified minimum distance away from naked
flames/using small amounts
o using appropriate water, sand or oil bath heating techniques.
Apparatus/tools/machi 
nery or equipment
Pressure/Vacuum

Heat
Moving parts
Projectiles
Ventilation
Entanglement/
Crushing
Scientific
apparatus
Machinery (fixed
plant/portable)
Hand tools
Vehicles/trailers
Ensure that equipment to be used with hazardous materials is checked to confirm that
it is safe, properly maintained and used in accordance with the manufacturer's
operating manual and/or relevant code of practice.
Ensure that others not actively involved in the activity with hazardous materials are
kept at a safe distance (e.g. in an area where they will not be exposed to agricultural
chemical hazards).

Undertake a risk management process in order to prevent or minimise the risk of
injuries caused by manual tasks.
Reduce handling and exposure risks by providing diluted or pre-mixed substances for
student use or providing activity as a demonstration (note that students are only
permitted to handle and mix schedule 5 hazardous materials).
Manual tasks
Environment
Design
Shape
Weight
Repetition
Force
Posture
Personal Factors
Special needs
Stability
Temperature
Grip
Working at heights
Restricted space

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Guidance note C
Risk Assessment Conclusions
The purpose of a chemical risk assessment is to enable decisions to be made about appropriate control
measures, training, and monitoring of hazards associated with a chemical or a chemical process. The
assessment does this by establishing:



the nature and severity of the hazard for each hazardous chemical
the degree of exposure of persons in the workplace, and
whether existing control measures adequately control exposure.
The information collected, and the decisions made around the points above, allow us to make reasoned
conclusions about the risk of using of a hazardous chemical under particular working conditions. Making
conclusions about a risk level is important as it allows us to determine what action is required.
Regardless of the risk classification, we always have an obligation to do what is reasonably practicable
to eliminate the risk, or if that is not possible, to minimise the risk to the lowest possible level.
The Risk Assessment Conclusions table may be used as a guide to assist with quantifying the risk level.
Note that conclusions 1 to 4 differ from other CARA risk level matrices used by DETE for non-chemical
based activities. These differences arise because of legislative requirements and because we know
what the consequences are if we are exposed to a chemical during a curriculum activity (the
consequences are documented in the SDS). However, in non-chemical activity risk assessments,
informed judgments are made about the inherent risks associated with the activity, as the consequences
can only be projected.
The result of this process means that there can only be an indicative relationship between the CARA
risk levels of low, medium or high and risk conclusions 1 to 4.
Activities involving chemicals may only be undertaken at the risk conclusion 1 or risk conclusion 2
levels. Once risks are not effectively controlled (conclusion 3 and conclusion 4 activities), or there is not
sufficient certainty about the risks associated with an activity, the level of exposure to a chemical cannot
be determined with confidence and the activity becomes unsafe. Thus, Conclusion 3 risk classifications
must be revised to reduce the risks, as risks are not effectively controlled. Conclusion 4 activities are not
to proceed because there is insufficient information available to make a valid risk conclusion.
Schools are reminded that a Curriculum Activity Risk Assessment Register is to be established and
maintained for Conclusion 2 activities, where the risk occurs at the higher end of the spectrum where
risks are significant and not effectively controlled. A School Curriculum Activity Register can assist
schools to record and manage the details of their risk management strategies involving hazardous
chemicals.
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Chemical Use Activity Guidance Notes — Page 8 of 10
Risk Assessment Conclusions
Overall Risk Level Conclusion
Conclusion
1
Action Required/Approval
Risks are not significant  Comply with all requirements of the label and current
SDS.
now, and not likely to
 Comply with the standard operating procedure for the
increase in the future (i.e.
substance(s).
risks are low)
 Manage and document through regular planning
processes and/or the person(s) using the chemicals
should approve and sign the risk assessment.
Select 1 if you are using a concentration less than which is considered hazardous or no precautions are required and it is
unlikely that the use of the chemical(s) will adversely affect the health of persons at the workplace and the risk is not likely to
increase in the future, e.g. you are using concentrations that are too small to constitute a risk, even if controls fail, or the
operation strictly conforms to the information on the label and in the SDS.
Risks are significant but
effectively controlled,
and could increase in the
future (i.e. medium to
high risk)
Conclusion
2
 Comply with all requirements of the label and current
SDS.
 Comply with the standard operating procedure for the
substance(s).
 Implement the identified controls to minimise the
chances of higher exposure occurring.
 Determine and implement additional measures for
regaining control if a high risk event occurs despite the
precautions already taken. Parental consent may be
required.
 Document controls in planning documents and/or
complete this Chemical Use Curriculum Activity Risk
Assessment.
 The Principal or delegated head of program (i.e. DP,
HOD, HOSES) to review and approve the risk
assessment.
Select 2 if you are satisfied that adequate controls are in place. Select where serious health effects could result if the control
measures fail or deteriorate. This usually results from the use of toxic hazardous chemicals or where the potential exposure is
high. Risks, while presently adequately controlled, could increase in the future.
Risks significant now
and not effectively
controlled (extreme risk)
Conclusion
3
 The activity must not proceed. Alternatives to
undertaking the activity must be found.
 Obtain additional information or expert advice to reach a
conclusion of 1 or 2.
 Comply with all requirements of the current SDS.
 Comply with the standard operating procedure for the
substance(s).
 Implement sufficient controls to ensure the safe use of the
material.
 The Principal is required to review and approve the
revised risk assessment prior to conducting this activity.
Select 3 if the use of a chemical is likely to constitute a significant risk and further investigation may be necessary (e.g. there
are persistent or widespread complaints of illness, discomfort, irritation or excessive odour, hazardous chemicals are splashed;
control measures are broken, defective or badly maintained, for example a poorly maintained extraction system which no longer
draws a hazardous chemical away from the work area; recognised safe work practices are not being observed).
Conclusion
4
Uncertain about risks
There is not enough
information, or there is
uncertainty about degree or
extent of exposure.
DO NOT PROCEED.
 The activity must not proceed. Alternatives to
undertaking the activity must be found.
 Obtain additional information or expert advice to reach a
conclusion of 1 or 2.
 In the meantime, implement work practices to ensure
safety.
Select 4 if no SDS is available, labelling is inadequate, the level of exposure cannot be estimated with confidence or further
investigation is necessary. Obtain additional information from other sources, such as suppliers, occupational health and safety
consultants and industry or trade associations. Meanwhile, implement good work practices to minimise exposure.
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Chemical Use Activity Guidance Notes — Page 9 of 10
HAZARDOUS CHEMICAL
Curriculum Activity Risk Management Flowchart
Establishing the context:
1. Which students will be involved?
2. What will the students be doing?
3. What will the students be using?
4. Where will the students be?
5. Who will be leading the activity?
6. What is the level of chemical exposure?
Planning – Manage and document through regular risk planning processes. If hazardous chemicals are
involved, refer to the chemical CARA
1. Identify chemical
2. Identify hazards
3. Identify control measures
Conclusion 1
(Non-hazardous)
Risks are not
significant.
No exposure controls
needed.
4. Classify risk conclusion
5. Determine actions/approval required
Conclusion 2
(Hazardous)
Conclusion 3
(Uncontrolled risk)
Conclusion 4
(Risks uncertain)
Use constitutes a
significant risk and further
investigation is required.
Adequate controls
are in place.
Health effects are
minimal if control
measures fail.
Revise activity
Adequate controls are in
place. Serious health effects
(e.g. burns, dizziness) could
result if control measures fail.
Regular planning
Chemical Curriculum Risk Assessment Template
Approval by Principal or delegated officer
School Curriculum Activity Register
Implement safety control measures, conduct activity, monitor safety and controls.
Review controls
Uncontrolled copy. Refer to the Department of Education, Training and Employment Policy and Procedure Register at
http://ppr.det.qld.gov.au/ to ensure you have the most current version of this document
Chemical Use Activity Guidance Notes — Page 10 of 10