This unit involves the skills and knowledge required to manage the stress and dynamic factors affecting the stability of a small commercial vessel using basic stability criteria. This includes interpreting basic stability criteria, carrying out required stability calculations, correlating and interpreting calculated stability data, managing stability and stress conditions within safety parameters and communicating the stability information t others as required.

This unit involves the skills and knowledge required to prepare a cargo operations plan for within the limits of responsibility of a Master 5 and Master 4 on a commercial vessel and a Skipper 3 and Skipper 2 on a fishing vessel, i.e. vessels of less than 80 metres in length operating within inshore limits (15 nm) and less than 35 metres within Australian Coastal Middle Water (600 nm). This includes the procedures for loading, unloading and distributing cargo on the vessel, appropriate emergency procedures for incidents involving dangerous and hazardous cargoes, suitable procedures for cargo monitoring and specifications for safety procedures that conform with maritime practice and OH&S requirements. This unit has s retitled but covers the same functions as previous unit TDMMA901A Prepare a cargo plan for cargo loading and unloading operations.

This unit involves the skills and knowledge required to monitor the condition and seaworthiness of a coastal vessel up to 80 metres, including an awareness of the fundamental principles of vessel construction, load-lines, conditions of assignment, structural elements to restrain fires and flooding, design characteristics that contribute to watertight integrity and fulfil regulatory requirements for seaworthiness.

This unit involves the skills and knowledge required to manoeuvre a commercial vessel within limits of responsibility of a Master 4 or Skipper 2, i.e. a vessel of less than 80 metres in length within inshore limits (15 nm) and less than 35 metres within ACMW (600 nm). This includes the operation of propulsion and manoeuvring systems during normal operations, management of the vessel during heavy weather and seas and manoeuvring the vessel during normal berthing, mooring and anchoring operations. This unit has been retitled but covers the same functions as previous unit TDMMC501B Manoeuvre a vessel less than 80 metres in length in any prevailing conditions.

This unit involves the skills and knowledge required to operate a propulsion unit, ancillary power units and equipment on board a commercial vessel within limits of responsibility of a Master 4/Skipper 2 in accordance with technical specifications and within safe operating limits.

This unit involves the skills and knowledge required of a Master 4 or Skipper 2 to execute watchkeeping arrangements and procedures on a small commercial vessel engaged on a coastal voyage that comply with the watchkeeping principles and bridgework procedures specified in the relevant regulations.

This unit involves the skills and knowledge required of a Master 4 to maintain safe navigation of a small commercial vessel through the use of radar and other navigational aids, including automatic radar plotting aids (ARPA). This includes initialisation and operation of radar and other modern navigational equipment and systems, interpreting all available navigational data and using it for avoiding collisions and ensuring the safe navigation of the vessel.

This unit involves the skills and knowledge required to plan and conduct a coastal passage for a commercial vessel and determine its position within limits of responsibility of a Master 4 or Skipper 2, i.e. a vessel of less than 80 metres in length within inshore limits (15 nm) and less than 35 metres within ACMW (600 nm). This includes planning and conducting a coastal passage for all conditions by acceptable methods of plotting ocean tracks, routeing in accordance with the General Principles on Ships' Routeing and reporting as required by the Guidelines and Criteria for Ship Reporting Systems. This unit has been retitled but covers the same functions as previous unit TDMMC501B Plan and conduct a coastal passage and determine position

This unit involves the skills and knowledge required of a Master 4 to predict meteorological and ocean conditions and apply them to ensure the safe navigation of a small commercial vessel, including interpreting and applying information obtained from observations, reports and instruments, reliably and accurately forecasting weather for an intended near coastal voyage using all available data. This unit has been retitled but covers the same functions as previous unit TDMMH701A Apply weather information when navigating a small vessel.

This unit involves the skills and knowledge required to establish and maintain a harmonious workplace environment on board a commercial vessel, including providing leadership to the crew, informing crew of expected standards of work and behaviour, allocating appropriate duties to crew, training and assessment of crew members, and identifying and dealing with conflict.

This unit involves the skills and knowledge required to ensure compliance with international and Australian legislative requirements and measures to ensure the protection of the marine environment during operations of an ocean-going vessel, including preventative and precautionary procedures, checking of compliance and remedying non-compliance.