Unit of competency Outline
Date retreived
22/07/2026 11:10 AM AWST
22/07/2026 11:10 AM AWST
Whilst all efforts are made to provide accurate and timely information from the relevant source/documentation, please be aware that the information supplied may not be the most current version. The accuracy of the detail has not been confirmed by the Department and therefore should not be relied upon without first confirming the contents.
Plan environmentally sustainable aquacultural practices
Plan environmentally sustainable aquacultural practices
Unit of competency
National Code
SFIAQUA504C
SFIAQUA504C
State Code
D9160
D9160
TGA Status
Replaced
Replaced
DTWD Status
Transition (Replaced)
Transition (Replaced)
State Implementation and Classification
Approved Date
27/02/2012
Field of Education
050999 - Environmental Studies, N.e.c.
Original Release Date
27/02/2012
Nominal Hours
50
Description
This unit of competency involves planning and implementing strategies and systems for sustainable environmental and socioeconomic aquacultural or ornamental practices in the workplace.Licensing, legislative, regulatory or certification requirements may apply to this unit. Therefore it will be necessary to check with the relevant state or territory regulators for current licensing, legislative or regulatory requirements before undertaking this unit.
Notes
Elements and Performance Criteria
1. Prepare and implement environmental strategies
- 1.1. Environmental and aesthetic values are assessed for enterprise location, cultured or held stock, construction and operation.
- 1.2. Financial and other resources are identified and allocated for environmental management within the enterprise.
- 1.3. Environmental management strategies that ensure compliance with legislative requirements are incorporated into risk mitigation procedures.
- 1.4. Strategies are assessed for their effectiveness in reducing environmental impacts from the enterprise, including ongoing reduction of waste, adverse impacts with wildlife and other resource users/uses, as well as energy and water efficiency.
- 1.5. Newly available technologies are incorporated into environmental management strategies if found practicable and feasible.
- 1.6. Professional assistance is obtained appropriate to the complexity of the task and financial risk involved and appropriate bodies consulted.
- 1.7. Any community concerns are identified and addressed in the development of strategies.
- 1.8. Environmental management plan is designed based on risk identification and mitigation procedures.
- 1.9. Environmental management plan reflects the requirements of the business plan, production plan and other planning parameters and is achievable with the enterprise's resources and budget.
- 1.10. Water quality and ongoing environmental monitoring plans are developed and documented, and areas of responsibility communicated to staff.
- 1.11. Mechanisation or automation of process or activity, including the use of specialised contract services, is researched and introduced.
2. Design a waste management system
- 2.1. Wastes and outputs are identified for inclusion in the waste water management system.
- 2.2. Waste water management system ensures collection, treatment, storage and re-use of stock and other facility wastes in the most efficient manner.
- 2.3. Where appropriate, materials and consumables obtained by the enterprise are from recycled or re-useable materials and obtained in amounts that result in packaging and waste reduction.
- 2.4. Composting, shredding, re-using and recycling are used as and when appropriate.
- 2.5. Waste disposal contractors are identified, terms negotiated and business awarded according to the environmental management plan.
- 2.6. Performance of the contract is monitored and action taken where variance is identified.
3. Conserve energy resources
- 3.1. Machinery purchase, management and operation procedures reflect efficient use of machinery to reduce fuel usage and emissions or discharges.
- 3.2. Energy used for heating, cooling, lighting and operation of remote appliances is efficient and from alternative sources where appropriate and available.
- 3.3. Design of buildings and structures takes into consideration the use of passive energy for lighting, heating and shelter.
4. Conserve water resources
- 4.1. Water is managed to optimise its use.
- 4.2. Contamination of water effluent with chemicals or wastes is minimised through sound utilisation strategies.
- 4.3. Settlement ponds, effluent treatment works and waste reduction processes are used appropriately.
5. Minimise adverse interactions with wildlife and other resource users
- 5.1. Potential interactions with wildlife and other resource users are identified and regularly assessed for level of adverse impacts.
- 5.2. Strategies are developed to mitigate adverse interactions.
6. Undertake an environmental audit
- 6.1. Environmental audit takes into consideration relevant factors.
- 6.2. Reports are prepared according to enterprise, customer and legal requirements.
RANGE STATEMENT
The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.
Relevant government regulations, licensing and other compliance requirements may include:
business or workplace operations, policies and practices:
commercial law, including fair trading and trade practices
consumer law
corporate law, including registration, licensing and financial reporting
disability policies and practices
equal opportunity, anti-discrimination and sexual harassment
industrial relations and awards, individual employment contracts and share of catch agreements
jurisdictional variations
superannuation
taxation
trade practices
warnings and dismissals
worker's compensation
ESD principles, environmental hazard identification, risk assessment and control
fisheries or aquaculture regulations, permits, licences, quotas, catch restrictions and other compliance requirements, including:
Australian Exclusive Economic Zone
international treaties and agreements
food safety, Hazard Analysis Critical Control Point (HACCP), hygiene and temperature control along chain of custody
imports quarantine and inspection, and importing approved arrangements for Australian Quarantine Inspection Service (AQIS), Australian Customs Service (ACS) and Biosecurity Australia (BA)
Indigenous native title, land claims and cultural activities, including fishing by traditional methods
maritime and occupational diving operations:
foreign and Australian legislation applying to quarantine and customs
International Convention for the Safety of Life at Sea (SOLAS)
International Convention on Standards of Training, Certification and Watchkeeping for Seafarers (STCW 1978)
Marine Emergency Response Search and Rescue (MERSAR)
National Standards for Commercial Vessels
pollution prevention - International Convention for the Prevention of Pollution from Ships (MARPOL 73/78)
Uniform Shipping Laws (USL) Code
use of vessels, right of way and other marine orders, bunkering and refuelling
land, buildings and vehicles:
buildings and structures design and appearance, constructions and additions
poaching, trespass and theft
road laws for use of motor vehicles, bikes, trucks and other transport equipment
soil and water management
use of chemicals and biological agents
use of firearms and powerheads
use of utilities, including water, natural gas, electricity and sewage
water or land lease, tenure or ownership and use
OHS hazard identification, risk assessment and control
product quality assurance:
correct naming and labelling (e.g. country of origin, Australian Fish Names Standard and eco-labelling)
correct quantities, sizes and other customer requirements
third-party certification (e.g. Australian Grown and ISO 14001:2004 Environmental management systems).
OHS guidelines may include:
appropriate workplace provision of first aid kits and fire extinguishers
clean, uncluttered, hygienic workplace
codes of practice, regulations and/or guidance notes which may apply in a jurisdiction or industry sector
enterprise-specific OHS procedures, policies or standards
hazard and risk assessment of workplace, maintenance activities and control measures
induction or training of staff, contractors and visitors in relevant OHS procedures and/or requirements to allow them to carry out their duties in a safe manner
OHS training register
safe lifting, carrying and handling techniques, including manual handling, and the handling and storage of hazardous substances
safe systems and procedures for outdoor work, including protection from solar radiation, fall protection, confined space entry and the protection of people in the workplace
systems and procedures for the safe maintenance of property, machinery and equipment, including hydraulics and exposed moving parts
the appropriate use, maintenance and storage of PPE.
Food safety and hygiene regulations and procedures may include:
Australian Shellfish Sanitation program
display, packaging and sale of food, including seafood and aquatic products
equipment design, use, cleaning and maintenance
exporting requirements, including AQIS Export Control (Fish) orders
handling and disposal of condemned or recalled seafood products
HACCP, food safety program, and other risk minimisation and quality assurance systems
location, construction and servicing of seafood premises
people, product and place hygiene and sanitation requirements
Primary Products Standard and the Australian Seafood Standard (voluntary)
processing, further processing and preparation of food, including seafood and aquatic products
product labelling, tracing and recall
receipt, storage and transportation of food, including seafood and aquatic products
requirements set out in Australian and New Zealand Food Authority (ANZFA) Food Standards Code and state and territory food regulations
temperature and contamination control along chain of custody.
ESD principles may include:
controlling use and recycling of water, and managing water quality and quantity
increasing use of renewable, recyclable and recoverable resources
managing environmental hazard identification, risk assessment and control
managing imported products quarantine and inspection, facility biosecurity, translocation of livestock and genetic material, and health certification
managing stock health and welfare, especially for handling, holding, transport and slaughter
managing sustainable fisheries or broodstock/seedstock collection requirements, such as size limits, quotas, season restrictions, population dynamics, fishing impacts, reducing by-catch, fisheries management strategies and maintaining biodiversity
managing, controlling and treating effluents, chemical residues, contaminants, wastes and pollution
minimising noise, dust, light or odour emissions
planning environmental and resource efficiency improvements
preventing genetically modified organisms, live cultured or held organisms from escaping into environment
protecting native and protected flora and fauna, marine or land parks or areas, adhering to the Convention on International Trade in Endangered Species of Wild Flora and Fauna (CITES), the Ramsar Convention, World Heritage and other international treaties for which Australia is a signatory
reducing emissions of greenhouse gases
reducing use of non-renewable resources
reducing disturbances to soils, erosion and surface water flows from machinery use and other activities
reducing energy use and introducing alternative energy sources.
PPE may include:
buoyancy vest or personal floatation device (PFD)
gloves, mitts or gauntlets, and protective hand and arm covering
hard hat or protective head covering
hearing protection (e.g. ear plugs and ear muffs)
insulated protective clothing for freezers or chillers and refrigeration units
non-slip and waterproof boots (gumboots) or other safety footwear
personal locator beacon or Emergency Position Indicating Radio Beacon (EPIRB)
protective eyewear, glasses and face mask
protective hair, beard and boot covers
protective outdoor clothing for tropical conditions
respirator or face mask
safety harness
sun protection (e.g. sun hat, sunscreen and sunglasses)
uniforms, overalls or protective clothing (e.g. mesh and waterproof aprons)
waterproof clothing (e.g. wet weather gear and waders).
Cultured or held stock may include:
adults, broodstock (ready to breed), seedstock or stockers, eggs and sperm, fertilised eggs, larvae, post-larvae, seed, spat, hatchlings, yearlings, juveniles, fry, fingerlings, yearlings, smolt, sporophytes, seedlings and tissue cultures
finfish, crustaceans, molluscs, aquatic reptiles, amphibians, polychaete and oligochaete worms, plankton, micro-algae, seaweed, aquatic plants, live rock, sponges and other aquatic invertebrates
for human consumption (seafood), stockers for other farms, stockers for conservation or recreational fishing, display or companion animals (ornamentals), and other products, including pearls, skins, shells, eggs, chemicals and pigments
wild caught, hatchery or nursery reared.
Wildlife may include:
introduced species
native fauna
native flora
protected areas
protected species.
Other resource users/uses may include:
commercial and recreational fishing
commercial, Indigenous and recreational shipping
divers, swimmers, water skiers and wind surfers
farmers, agriculturists, foresters and industrialists
heritage areas, national parks and marine parks
Indigenous and other community groups
naturalists, bird watchers and botanists
owners of neighbouring land or housing.
Appropriate bodies consulted may include:
Coastcare and Landcare and catchment management groups
consultants and specialists
councils
governments
non-government organisations and other stakeholder groups
provision for the evaluation of environmental assets for insurance purposes
statutory bodies.
Planning parameters may include:
access to:
land
power
water
other inputs or materials
area available for waste distribution/storage/treatment capacity
availability of water, ground water levels, water re-use or recycling systems
chemical use
climate
culture or holding system type
disease status within the stock
exotic stock regulations/notifiable diseases
financial resources
future increases in stock numbers and individual sizes (biomass)
future increases in supplementary feeding
intensity of operations
labour resources
minimise escapes
minimise genetic interaction
proximity to neighbours
quarantine requirements
siting of culture or holding structures in relation to areas where wastes will be collected
soil and water type
stock flow alterations
stock species, type and numbers
stock transfer/movement
topography
volume of waste currently produced, future trends, relevant legislation and regulations relating to waste management
whole farm planning.
Waste water management systems may include:
composting and worm farms
filter feeding species and aquatic plants or seaweeds
integrated aquaculture or agriculture, hydroponics or aquaponics
spreading irrigation to paddocks, crops or trees
recycling
self-composting toilets and septic tanks
settlement ponds or lagoons and constructed wetlands.
Efficient may include:
cost-effectiveness
effective conservation of waste into a useable forms
efficiency in overall design and operation
environmental friendliness
labour relations
maximising benefit from recycled wastes
meeting the legal requirements
resource utilisation efficiency, recycling or reuse.
Emissions or discharges may include:
gas
light
liquids and solids
noise
odour and fumes
particulates and dust
smoke
vapour.
Alternative energy sources may include:
biogas
solar generators, tubing and panels
water generators (hydro-electric)
wind generators.
Design of buildings and structures may include:
building materials
cavity sizes
location and construction of windows
orientation of building or structure
planting surrounding the building or structure
self-composting toilets
use of colour
waste disposal
windbreaks
workplace services for employees.
Relevant factors may include:
topography and characteristics of area, including:
ambience
biology
climate
current policies and practices
energy use
flora and fauna
geology
heritage
hydrology
noise, dust, light and odour control
oceanography
overburden of vegetation
presence of protected species
surrounding human activities
surrounding vegetation and wildlife
water availability and use.
The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.
Relevant government regulations, licensing and other compliance requirements may include:
business or workplace operations, policies and practices:
commercial law, including fair trading and trade practices
consumer law
corporate law, including registration, licensing and financial reporting
disability policies and practices
equal opportunity, anti-discrimination and sexual harassment
industrial relations and awards, individual employment contracts and share of catch agreements
jurisdictional variations
superannuation
taxation
trade practices
warnings and dismissals
worker's compensation
ESD principles, environmental hazard identification, risk assessment and control
fisheries or aquaculture regulations, permits, licences, quotas, catch restrictions and other compliance requirements, including:
Australian Exclusive Economic Zone
international treaties and agreements
food safety, Hazard Analysis Critical Control Point (HACCP), hygiene and temperature control along chain of custody
imports quarantine and inspection, and importing approved arrangements for Australian Quarantine Inspection Service (AQIS), Australian Customs Service (ACS) and Biosecurity Australia (BA)
Indigenous native title, land claims and cultural activities, including fishing by traditional methods
maritime and occupational diving operations:
foreign and Australian legislation applying to quarantine and customs
International Convention for the Safety of Life at Sea (SOLAS)
International Convention on Standards of Training, Certification and Watchkeeping for Seafarers (STCW 1978)
Marine Emergency Response Search and Rescue (MERSAR)
National Standards for Commercial Vessels
pollution prevention - International Convention for the Prevention of Pollution from Ships (MARPOL 73/78)
Uniform Shipping Laws (USL) Code
use of vessels, right of way and other marine orders, bunkering and refuelling
land, buildings and vehicles:
buildings and structures design and appearance, constructions and additions
poaching, trespass and theft
road laws for use of motor vehicles, bikes, trucks and other transport equipment
soil and water management
use of chemicals and biological agents
use of firearms and powerheads
use of utilities, including water, natural gas, electricity and sewage
water or land lease, tenure or ownership and use
OHS hazard identification, risk assessment and control
product quality assurance:
correct naming and labelling (e.g. country of origin, Australian Fish Names Standard and eco-labelling)
correct quantities, sizes and other customer requirements
third-party certification (e.g. Australian Grown and ISO 14001:2004 Environmental management systems).
OHS guidelines may include:
appropriate workplace provision of first aid kits and fire extinguishers
clean, uncluttered, hygienic workplace
codes of practice, regulations and/or guidance notes which may apply in a jurisdiction or industry sector
enterprise-specific OHS procedures, policies or standards
hazard and risk assessment of workplace, maintenance activities and control measures
induction or training of staff, contractors and visitors in relevant OHS procedures and/or requirements to allow them to carry out their duties in a safe manner
OHS training register
safe lifting, carrying and handling techniques, including manual handling, and the handling and storage of hazardous substances
safe systems and procedures for outdoor work, including protection from solar radiation, fall protection, confined space entry and the protection of people in the workplace
systems and procedures for the safe maintenance of property, machinery and equipment, including hydraulics and exposed moving parts
the appropriate use, maintenance and storage of PPE.
Food safety and hygiene regulations and procedures may include:
Australian Shellfish Sanitation program
display, packaging and sale of food, including seafood and aquatic products
equipment design, use, cleaning and maintenance
exporting requirements, including AQIS Export Control (Fish) orders
handling and disposal of condemned or recalled seafood products
HACCP, food safety program, and other risk minimisation and quality assurance systems
location, construction and servicing of seafood premises
people, product and place hygiene and sanitation requirements
Primary Products Standard and the Australian Seafood Standard (voluntary)
processing, further processing and preparation of food, including seafood and aquatic products
product labelling, tracing and recall
receipt, storage and transportation of food, including seafood and aquatic products
requirements set out in Australian and New Zealand Food Authority (ANZFA) Food Standards Code and state and territory food regulations
temperature and contamination control along chain of custody.
ESD principles may include:
controlling use and recycling of water, and managing water quality and quantity
increasing use of renewable, recyclable and recoverable resources
managing environmental hazard identification, risk assessment and control
managing imported products quarantine and inspection, facility biosecurity, translocation of livestock and genetic material, and health certification
managing stock health and welfare, especially for handling, holding, transport and slaughter
managing sustainable fisheries or broodstock/seedstock collection requirements, such as size limits, quotas, season restrictions, population dynamics, fishing impacts, reducing by-catch, fisheries management strategies and maintaining biodiversity
managing, controlling and treating effluents, chemical residues, contaminants, wastes and pollution
minimising noise, dust, light or odour emissions
planning environmental and resource efficiency improvements
preventing genetically modified organisms, live cultured or held organisms from escaping into environment
protecting native and protected flora and fauna, marine or land parks or areas, adhering to the Convention on International Trade in Endangered Species of Wild Flora and Fauna (CITES), the Ramsar Convention, World Heritage and other international treaties for which Australia is a signatory
reducing emissions of greenhouse gases
reducing use of non-renewable resources
reducing disturbances to soils, erosion and surface water flows from machinery use and other activities
reducing energy use and introducing alternative energy sources.
PPE may include:
buoyancy vest or personal floatation device (PFD)
gloves, mitts or gauntlets, and protective hand and arm covering
hard hat or protective head covering
hearing protection (e.g. ear plugs and ear muffs)
insulated protective clothing for freezers or chillers and refrigeration units
non-slip and waterproof boots (gumboots) or other safety footwear
personal locator beacon or Emergency Position Indicating Radio Beacon (EPIRB)
protective eyewear, glasses and face mask
protective hair, beard and boot covers
protective outdoor clothing for tropical conditions
respirator or face mask
safety harness
sun protection (e.g. sun hat, sunscreen and sunglasses)
uniforms, overalls or protective clothing (e.g. mesh and waterproof aprons)
waterproof clothing (e.g. wet weather gear and waders).
Cultured or held stock may include:
adults, broodstock (ready to breed), seedstock or stockers, eggs and sperm, fertilised eggs, larvae, post-larvae, seed, spat, hatchlings, yearlings, juveniles, fry, fingerlings, yearlings, smolt, sporophytes, seedlings and tissue cultures
finfish, crustaceans, molluscs, aquatic reptiles, amphibians, polychaete and oligochaete worms, plankton, micro-algae, seaweed, aquatic plants, live rock, sponges and other aquatic invertebrates
for human consumption (seafood), stockers for other farms, stockers for conservation or recreational fishing, display or companion animals (ornamentals), and other products, including pearls, skins, shells, eggs, chemicals and pigments
wild caught, hatchery or nursery reared.
Wildlife may include:
introduced species
native fauna
native flora
protected areas
protected species.
Other resource users/uses may include:
commercial and recreational fishing
commercial, Indigenous and recreational shipping
divers, swimmers, water skiers and wind surfers
farmers, agriculturists, foresters and industrialists
heritage areas, national parks and marine parks
Indigenous and other community groups
naturalists, bird watchers and botanists
owners of neighbouring land or housing.
Appropriate bodies consulted may include:
Coastcare and Landcare and catchment management groups
consultants and specialists
councils
governments
non-government organisations and other stakeholder groups
provision for the evaluation of environmental assets for insurance purposes
statutory bodies.
Planning parameters may include:
access to:
land
power
water
other inputs or materials
area available for waste distribution/storage/treatment capacity
availability of water, ground water levels, water re-use or recycling systems
chemical use
climate
culture or holding system type
disease status within the stock
exotic stock regulations/notifiable diseases
financial resources
future increases in stock numbers and individual sizes (biomass)
future increases in supplementary feeding
intensity of operations
labour resources
minimise escapes
minimise genetic interaction
proximity to neighbours
quarantine requirements
siting of culture or holding structures in relation to areas where wastes will be collected
soil and water type
stock flow alterations
stock species, type and numbers
stock transfer/movement
topography
volume of waste currently produced, future trends, relevant legislation and regulations relating to waste management
whole farm planning.
Waste water management systems may include:
composting and worm farms
filter feeding species and aquatic plants or seaweeds
integrated aquaculture or agriculture, hydroponics or aquaponics
spreading irrigation to paddocks, crops or trees
recycling
self-composting toilets and septic tanks
settlement ponds or lagoons and constructed wetlands.
Efficient may include:
cost-effectiveness
effective conservation of waste into a useable forms
efficiency in overall design and operation
environmental friendliness
labour relations
maximising benefit from recycled wastes
meeting the legal requirements
resource utilisation efficiency, recycling or reuse.
Emissions or discharges may include:
gas
light
liquids and solids
noise
odour and fumes
particulates and dust
smoke
vapour.
Alternative energy sources may include:
biogas
solar generators, tubing and panels
water generators (hydro-electric)
wind generators.
Design of buildings and structures may include:
building materials
cavity sizes
location and construction of windows
orientation of building or structure
planting surrounding the building or structure
self-composting toilets
use of colour
waste disposal
windbreaks
workplace services for employees.
Relevant factors may include:
topography and characteristics of area, including:
ambience
biology
climate
current policies and practices
energy use
flora and fauna
geology
heritage
hydrology
noise, dust, light and odour control
oceanography
overburden of vegetation
presence of protected species
surrounding human activities
surrounding vegetation and wildlife
water availability and use.
EVIDENCE GUIDE
The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.
Overview of assessment
Critical aspects for assessment evidence required to demonstrate competence in this unit
Assessment must confirm the ability to:
develop environmental management strategies and systems that use available resources and meet enterprise procedures and legislative requirements, and to communicate these to staff.
Assessment must confirm knowledge of:
aquaculture systems
effects of chemicals and water quality on aquatic organisms
regulations impacting on aquaculture.
Context of and specific resources for assessment
Assessment is to be based around an actual aquaculture enterprise or simulated through a detailed case study.
Resources may include:
models and farm hatchery components.
Method of assessment
The following assessment methods are suggested:
work-based project
work-based scenario or case study
written or oral short-answer testing.
Guidance information for assessment
This unit may be assessed holistically with other units within a qualification.
The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.
Overview of assessment
Critical aspects for assessment evidence required to demonstrate competence in this unit
Assessment must confirm the ability to:
develop environmental management strategies and systems that use available resources and meet enterprise procedures and legislative requirements, and to communicate these to staff.
Assessment must confirm knowledge of:
aquaculture systems
effects of chemicals and water quality on aquatic organisms
regulations impacting on aquaculture.
Context of and specific resources for assessment
Assessment is to be based around an actual aquaculture enterprise or simulated through a detailed case study.
Resources may include:
models and farm hatchery components.
Method of assessment
The following assessment methods are suggested:
work-based project
work-based scenario or case study
written or oral short-answer testing.
Guidance information for assessment
This unit may be assessed holistically with other units within a qualification.
Replaces
| State Code | National Code | Title | Type |
|---|---|---|---|
| S4177 | SFIAQUA504B | Plan ecologically sustainable aquacultural practices | Unit of competency |
Replaced By
| State Code | National Code | Title | Type |
|---|---|---|---|
| OAS15 | SFIAQU504 | Plan and implement environmentally sustainable aquacultural practices | Unit of competency |
| State Code | National Code | Title | Type |
|---|---|---|---|
| W990 | SFI50111 | Diploma of Aquaculture | Qualification |