Unit of competency Outline

Date retreived
22/07/2026 1:18 AM AWST

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Contribute to safe cargo operations on liquefied gas tankers

Contribute to safe cargo operations on liquefied gas tankers

Unit of competency
National Code
MARA3001A
State Code
WG351
TGA Status
Replaced
DTWD Status
Replaced
Current Release Number
1.00
Current Release Date
06/06/2013
View on TGA
State Implementation and Classification
Approved Date
10/02/2014
Field of Education
031705 - Marine Craft Operation
Original Release Date
10/02/2014
Nominal Hours
50
Description
This unit involves the skills and knowledge required to recognise hazards associated with liquefied gas tankers and to apply appropriate hazard control measures to ensure safe cargo operation.
Notes
Elements and Performance Criteria
1 Determine characteristics of tanker cargo and tankers to ensure safe transfer and transport of cargo
  • 1.1 Features of various types of liquefied gas tankersare outlined
  • 1.2 Cargo operations of tankers are identified
  • 1.3 Properties of cargo being transported are identified and their impact on safety, the environment and vessel operations are outlined
  • 1.4 Hazards associated with the transport of cargo are clarified according to emergency response documentation
  • 1.5 Hazard controls associated with tanker cargo are employed according to organisational procedures
2 Comply with legislative and organisational requirements for safe transfer and transport of tanker cargo
  • 2.1 Safety data sheets (SDS)/material safety data sheets (MSDS) relevant to cargo are accessed and procedures for tanker safety and safety management are identified
  • 2.2 SDS/MSDS are interpreted to identify relevant cargo-related hazards to the vessel and to personnel
  • 2.3 Legislative and organisational requirements are interpreted to identify appropriate actions for safe transfer and transport of cargo
3 Take precautions to prevent hazards
  • 3.1 Organisational policies and procedures to minimise hazards are identified
  • 3.2 Type and severity of the hazard posed by cargo is recognised
  • 3.3 Transfer and transport of cargo is monitored to prevent hazards
  • 3.4 Gas monitoring equipment is regularly inspected and used according to organisational procedures
4 Act on becoming aware of a hazardous situation
  • 4.1 Source of hazard is identified according to organisational procedures
  • 4.2 Risk is assessed considering severity and likelihood of consequences
  • 4.3 Control measures to minimise risk are implemented to level of responsibility or referred to appropriate person for further action
  • 4.4 Containment procedures are applied where appropriate
  • 4.5 Appropriate safety procedures are followed and personal protective equipment is used according to organisational procedures
  • 4.6 Risk is eliminated where possible, and if not practical, actions are taken to control risk
  • 4.7 Appropriatefirefighting equipment is identified to carry out firefighting operations
5 Take precautions to prevent pollution of the environment from release of liquefied gases
  • 5.1 Procedures to prevent pollution are identified and observed at all times
  • 5.2 Measures to prevent pollution during normal and emergency situations are applied according to regulatory requirements and organisational procedures
  • 5.3 All relevant information is immediately reported to appropriate persons when a vapour leak or cloud is detected or a malfunction has occurred that poses a risk of a vapour leak or cloud
  • 5.4 Shore-based response personnel are promptly notified when a vapour leak or cloud occurs
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.
Features of various types of liquefied gas tankers must include:
General arrangement and construction
Types of liquefied gas tankers
Cargo operations must include:
Cargo handling equipment
ESS
Loading, unloading and care in transit
Piping systems and valves
Tank cleaning, purging, gas-freeing and inerting
Properties must include:
Chemical symbols
Pressure and temperature including vapour pressure/temperature relationship
Types of electrostatic charge generation
Cargo must include:
Ammonia
Butadiene
Ethylene
LNG
LPG
Propylene
Vinyl chloride
Hazards must include:
Corrosion hazards
Electrostatic hazards
Environmental hazards
Explosion and flammability hazards
Extremely low temperatures
Health hazards
Pressure hazards
Reactivity hazards
Sources of ignition
Toxicity hazards
Vapour leaks and clouds
Hazard controls must include:
Anti-static measures
Atmospheric control
Cargo inhibition
Gas testing
Importance of cargo compatibility
Inerting, drying and monitoring techniques
Segregation
Ventilation
Gas monitoring equipment must include:
Gas monitoring instruments
Oxygen indicators
Firefighting equipment must include:
Firefighting agents
Fixed dry chemical systems
Fixed foam systems
Portable foam systems
Measures must include:
Assisting in implementing shipboard spill containment procedures
Reporting relevant information to the responsible person

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, the required skills and knowledge, the range statement and the Assessment Guidelines for the Training Package.
Critical aspects for assessment and evidence required to demonstrate competency in this unit
The evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the Elements, Performance Criteria, Required Skills, Required Knowledge and include:
timely identification and reporting of potential hazards and risks
providing the required amount of detail in reports.
Context of and specific resources for assessment
Performance is demonstrated consistently over time and in a suitable range of contexts.
Resources for assessment include access to:
industry-approved marine operations site where contributing to safe cargo operation of liquefied gas tankers may be conducted
tools, equipment and personal protective equipment currently used in industry
relevant regulatory and equipment documentation that impacts on work activities
range of relevant exercises, case studies and/or other simulated practical and knowledge assessments
appropriate range of relevant operational situations in the workplace.
In both real and simulated environments, access is required to:
relevant and appropriate materials and equipment
applicable documentation including workplace procedures, regulations, codes of practice and operation manuals.
Method of assessment
Practical assessment must occur in an:
appropriately simulated workplace environment and/or
appropriate range of situations in the workplace.
A range of assessment methods should be used to assess practical skills and knowledge. The following examples are appropriate to this unit:
direct observation of the candidate contributing to safe cargo operation of liquefied gas tankers
direct observation of the candidate applying relevant WHS/OHS requirements and work practices.
Guidance information for assessment
Holistic assessment with other units relevant to the industry sector, workplace and job role is recommended.
In all cases where practical assessment is used it should be combined with targeted questioning to assess Required Knowledge.
Assessment processes and techniques must be appropriate to the language and literacy requirements of the work being performed and the capacity of the candidate.

Replaced By
State Code National Code Title Type
WH788 MARA001 Contribute to safe cargo operations on liquefied gas tankers Unit of competency