Certificate IV in Explosive Ordnance Maintenance

Not applicable.


17 units of competency are required for this qualification including:

4 core units

13 elective units

Choose a minimum of 11 elective units from the Group A (Specialisation) and Group B (General) lists below, of which 7 units must be from Group A.

Choose the remaining 2 elective units from either the elective lists below, or elsewhere within this training package, or another endorsed training package, or accredited course.

Where a pre-requisite unit is attached to an elective unit it is identified by this symbol .

The pre-requisite units attached to any of the elective units must be undertaken and are additional to the number of elective units required for the qualification.

The elective units should be selected from the units that most closely align to an individuals occupational outcomes. Electives selected must not duplicate outcomes of other units.

Elective units selected must not duplicate content already covered by other units in this qualification.


Core Units

add topic DEFEO101D

Work safely with explosive ordnance

add topic DEFEQ001C

Work with equity and diversity

add topic BSBCMN311B

Maintain workplace safety

add topic TLID1001A

Shift materials safely using manual handling methods


Group A Elective Units (Specialisation)

add topic DEFEO209C

Control explosive ordnance engineering and logistics processes

add topic DEFEO211D

Apply a knowledge of explosive ordnance

add topic DEFEO212C

License explosive ordnance facilities and potential explosive sites

add topic DEFEO505D

Breakdown explosive ordnance

add topic DEFEO511D

Maintain grenades

add topic DEFEO512D

Maintain mortar ammunition

add topic DEFEO513D

Maintain actuating devices

add topic DEFEO514D

Maintain pyrotechnics and countermeasures

add topic DEFEO515D

Maintain guided weapons

add topic DEFEO516D

Maintain free flight rockets

add topic DEFEO517D

Maintain gun ammunition

add topic DEFEO518D

Maintain aerial delivered ordnance

add topic DEFEO519D

Maintain mines

add topic DEFEO520D

Maintain demolition stores

add topic DEFEO601D

Assess explosive ordnance firings

add topic DEFEO602C

Plan explosive ordnance trials

add topic DEFEO603C

Conduct explosive ordnance trials

add topic DEFEO604C

Perform explosive tests, measurements and analysis

add topic DEFEO605D

Conduct explosive ordnance firings

add topic DEFEO717C

Maintain aircraft egress systems

add topic DEFEO718C

Maintain cartridge operated fire extinguisher systems

add topic TLIF4007A

Implement and coordinate accident-emergency procedures


Group B Elective Units (General)

add topic DEFCA422B

Conduct range practices

add topic DEFCM118B

Act as a range safety officer on a permanent range

add topic DEFEO202D

Establish and maintain the safety and security of explosive warehouses and workshops

add topic DEFEO203C

Dispose of non-explosive dangerous goods

add topic DEFEO206C

Apply a knowledge of the service environment

add topic DEFEO207C

Inspect explosive ordnance facilities

add topic DEFEO208C

Supervise explosive ordnance engineering and logistics processes

add topic DEFEO213A

Establish and operate an explosive ordnance field storage site

add topic DEFEO506D

Fuze and defuze explosive ordnance

add topic DEFEO507D

Assemble and disassemble explosive components

add topic DEFEO509D

Perform purging

add topic DEFEQ002B

Supervise equity and diversity in the workplace

add topic DEFRI001B

Treat risk within Defence at an operational level

add topic DEFRI002B

Conduct risk assessment in a Defence environment

add topic BSBAUD402B

Participate in a quality audit

add topic BSBSUS301A

Implement and monitor environmentally sustainable work practices

add topic HLTFA211A

Provide basic emergency life support


add topic HLTFA311A

Apply first aid

add topic PUAWER004B

Respond to workplace emergencies

add topic TLIA2022A

Participate in stocktakes

add topic TLIA3023A

Coordinate stocktakes

add topic TLIB3006A

Carry out inspection of vehicles designed to carry special loads

add topic TLIC3063A

Operate vehicle carry special loads

add topic TLID3027A

Prepare for transport of dangerous good

add topic TLID3015A

Identify and label explosives and dangerous goods

add topic TLID2016A

Load and unload explosives and dangerous goods

add topic TLIE3002A

Estimate/calculate mass, area and quantify dimensions


    Not applicable.

Entry Requirements

Not applicable.

Licensing Information

Not applicable.

Employability Skills

Employability Skills are part of a unit of competency.

Employability Skills statements from a selection of units of competency from the DEF40412 Certificate IV in Explosive Ordnance Maintenance have been reproduced in the table below.

This table provides an example of Employability Skills for the qualification because Employability Skills within a qualification will vary depending on the qualification packaging options.

Defence qualifications have core units (which must be achieved) and elective units (where there is a choice of units which must be achieved) so different Employability Skills Summaries are possible within the one qualification, depending on the package of core units and chosen elective units.

Employability Skill

Employability Skills Statement


communicate with supervisors, suppliers, clients and subordinates

identify and confirm requirement for explosive ordnance breakdown from work requests/instructions

identify and report breaches in site safety

liaise with supervisors, suppliers, clients and superiors as required

obtain relevant authorisation before specialised and hazardous work is carried out

prepare and provide relevant reports and documentation

use verbal and non-verbal communication techniques including language, language style, active listening


apply team work principles and strategies

control a number of work teams

direct, brief, coordinate and monitor personnel

encourage other team members

participate in and facilitating teams

understand composition of teams, and roles and responsibilities of team members

use techniques for supporting others/team members

Problem solving

apply formulae to determine the net explosive quantity and compatibility for the facility

demonstrate application of knowledge of explosive ordnance to assist in work and to guide problem solving

identify and action the requirement for waivers

undertake spatial measurement including length, width, perimeter and area

use knowledge of service environments to assist in work and guide problem solving

Initiative and enterprise

initiate and monitor processes

initiate any remedial action required

Planning and organising

ascertain availability and appropriateness of drawings, work procedures and associated documentation

assess plant, equipment and tools for availability, function and serviceability

identify and allocate resources required for the processes

identify occupational health and safety policies addressing the processes and apply for the duration in all associated activities

identify resource shortfall and measures and initiate their sourcing

inspect the facility and potential explosive site to be licensed and draw conclusions and recommendations from these activities

monitor and coordinate the activities within and between processes

plan and prepare for licensing

plan the conduct of processes

research and examine the required documentation


apply independent decision making

apply personal behaviour that shows sensitivity to the differences between colleagues

apply personal safety measures

interpret environmental effects relevant to explosive ordnance

meet work priorities


apply knowledge of general properties of explosive ordnance

learn about explosive ordnance knowledge relevant to work

understand design principles of explosive ordnance

understand effects of explosive ordnance

understand inter-operability of explosive ordnance

understand safety, legislative and statutory requirements relevant to explosive ordnance


apply explosive ordnance knowledge relevant to work being performed

maintain grenades

understand characteristics, technical capabilities, effects and limitations of Australian Defence Force explosive ordnance

understand technical capabilities and limitations of equipment used in the licensing process

use appropriate information technology and software

use equipment such as computers, digital cameras, laser range finders, global positioning systems

use weapon system and platform integration