The TESDA Course in CONSUMER ELECTRONICS SERVICING NC IV consists of competencies that must possess to enable a person to manage servicing system for consumer electronic products and systems and to train service technician supervisor.

This Qualification is packaged from the competency map of the Electronics Industry (Service sector)

A student who has achieved this Course in CONSUMER ELECTRONICS SERVICING NC IV is competent to be:

  • Consumer Electronics Product Assembly Supervisor
  • Domestic Appliance Service Technician Supervisor
  • Cellular Phone Service Technician Supervisor
  • Audio-video Service Technician Supervisor


Level: NC IV
Nominal Training Duration :

(Basic Competencies) 36 hrs.
(Common Competencies) 60 hrs.
(Core Competencies) 80 hrs.

This course is designed to develop & enhance the knowledge, skills, & attitudes of a Consumer Electronics Technician, in accordance with industry standards. It covers the basic & common competencies in addition to the core competencies such as commissioning consumer electronic products system, developing servicing system for consumer electronic products and training service technician supervisor. The nominal duration of 176 hrs. covers the required units at NC IV. TVET providers can however, offer a longer, ladderized course covering both NC II and NC III basic, common and core units.


Trainees or students who would like to enroll in this program must possess the following requirements:

  • Must have completed Consumer Electronics Servicing NCIII program or equivalent
  • Must have interest and potential in managerial functions


This units of competency comprising this qualification include Basic, Common, Elective and Core Competencies.

To obtain this TESDA course in CONSUMER ELECTRONICS SERVICING NC IV, all units prescribed for this qualification must be achieved.

These units of competency comprising this qualification include the following:

ELC724329 Manage servicing systems for consumer electronics products and systems
ELC724330 Train Service Technician Supervisors
ELC724201 Use Hand Tools
ELC311201 Perform Mensuration and Calculation
ELC311202 Prepare and Interpret Technical Drawing
ELC315202 Apply Quality Standards
ELC311203 Perform Computer Operations
ELC724202 Terminate and Connect Electrical Wiring and Electronic Circuits
500311115 Utilize specialized communication skills
500311116 Develop teams and individuals
500311117 Apply problem solving techniques in the workplace
500311118 Collect, analyze and organize information
500311119 Plan and organize work
500311120 Promote environmental protection


This section gives the details of the contents of the core units of competency required in CONSUMER ELECTRONICS SERVICING NC IV.


This unit covers the knowledge, skills and attitudes required to manage servicing system.

  1. Plan and prepare management of servicing system
    • Management of servicing and maintenance of OH&S policies and procedures is planned and prepared to ensure that the work sequence is in accordance with requirements
    • Appropriate personnel are consulted and directed to ensure the programs for servicing and maintenance are coordinated effectively with others involved on the work site
    • Programs to be managed for servicing and maintenance are checked against job requirements
    • Materials necessary to complete the work are identified and detailed in accordance with established procedures and checked against job requirements
    • Tools, equipment and testing devices needed to carry out the work are identified and detailed in accordance with established procedures
    • Procurement management plan is formulated for servicing and maintenance in accordance with established procedures and checked against requirements
  2. Manage and monitor servicing system
    • Normal function of consumer electronics products and associated circuits are ascertained and detailed in accordance with requirements
    • Mechanisms are used to measure, record and report progress of activities in relation to the agreed servicing and maintenance schedules and plans
    • Servicing and maintenance system is managed and monitored in accordance with established procedures and requirements to achieve designated objectives
    • Response to unplanned events or conditions in accordance with established procedures are detailed
    • Records and documentation of servicing and maintenance activities are maintained in accordance with established procedures to facilitate quality management and to provide an audit trail.
    • Results of routine maintenance activities are monitored in accordance with established procedures to determine compliance with agreed quality standards
    • Shortfalls in quality outcomes are acted upon in accordance with established procedures to enable appropriate action to be initiated
  3. Evaluate and document servicing system
    • Quality management issues and responses are reported in accordance with established procedures
    • Completion of servicing and maintenance is reported in accordance with established procedures


This unit covers the knowledge, skills and attitudes required to train service technician supervisors.

  1. Plan and prepare training activities
    • Required tools, materials and equipment are prepared in the worksite.
    • Stage of development is determined from discussion with the service technician supervisor, observation of the service technician supervisor and/or a formal assessment being carried out
    • Measures are taken to ensure the service technician supervisor understands OH&S requirements and safe working procedures and practices for the particular worksite and the activities to be undertaken
    • Preparation for particular training includes deciding which activities are to be undertaken by the service technician supervisor and the level of supervision
    • Confirmations from the service technician supervisor are sought regarding the level of understanding of the training activity to be performed
  2. Guide/mentor service technician supervisors
    • Service technician supervisors training is conducted in accordance with training plan
    • Service technician supervisor is provided with clear instructions on the work to be undertaken and the respective responsibilities associated with the work and to others involved
    • Service technician supervisor is guided/mentored and ongoing checks of performance(s) are made at a level appropriate to the stage of development in accordance with industry standards
    • Measures are taken to ensure the service technician supervisor completes relevant documentation of the work performed in accordance with established procedures
  3. Document and provide feedback
    • Service technician supervisor progress is monitored in accordance with established procedures and documentation requirements
    • Work activities and assessment undertaken are documented and verified in accordance with established procedures
    • Assessment feedback is provided to service technician supervisor and training evaluation report is submitted to responsible person in accordance with established procedures



This unit covers the knowledge, skills and attitudes on the safe use, handling and maintenance of tools.

  1. Plan and prepare for tasks to be undertaken
    • Tasks to be undertaken are properly identified
    • Appropriate hand tools are identified and selected according to the task requirements
  2. Prepare hand tools
    • Appropriate hand tools are checked for proper operation and safety
    • Unsafe or faulty tools are identified and marked for repair according to standard company procedure
  3. Use appropriate hand tools and test equipment
    • Tools are used according to tasks undertaken
    • All safety procedures in using tools are observed at all times and appropriate personal protective equipment (PPE) are used
    • Malfunctions, unplanned or unusual events are reported to the supervisor
  4. Maintain hand tools
    • Tools are handled without damage according to procedures
    • Routine maintenance of tools undertaken according to standard operational procedures, principles and techniques
    • Tools are stored safely in appropriate locations in accordance with manufacturer’s specifications or standard operating procedures


This unit covers the knowledge, skills and attitudes and values needed identify, care, handle and use measuring instruments

  1. Select measuring instruments
    • Object or component to be measured is identified according to procedures
    • Correct specifications are obtained from relevant source
    • Measuring tools are selected in line with job requirements
  2. Carry out measurements and calculation
    • Appropriate measuring instrument is selected to achieve required outcome
    • Accurate measurements are obtained for job
    • Calculation needed to complete work tasks are performed using the four basic process of addition (+), subtraction (-), multiplication (x), and division (/)
    • Calculation involving fractions, percentages and mixed numbers are used to complete workplace tasks.
    • Numerical computation is checked and corrected for accuracy
    • Instruments are read to the limit of accuracy of the tool.
  3. Maintain measuring instruments
    • Measuring instruments are handled without damage according to procedures
    • Measuring instruments are cleaned before and after using.
    • Proper storage of instruments are undertaken according to manufacturer’s specifications and standard operating procedures.


This unit covers the knowledge, skills and attitudes and values needed to prepare/interpret diagrams, engineering abbreviation and drawings, symbols, dimension.

  1. Identify different kinds of technical drawings
    • Correct technical drawing is selected according to job requirements.
    • Technical drawings are segregated in accordance with the types and kinds of drawings
  2. Interpret technical drawing
    • Components, assemblies or objects are recognized as required.
    • Dimensions of the key features of the objects depicted in the drawing are correctly identified.
    • Symbols used in the drawing are identified and interpreted correctly.
    • Drawing is checked and validated against job requirements or equipment in accordance with standard operating procedures.
  3. Prepare/make changes to electrical/electronic schematics and drawings
    • Electrical/electronic schematic is drawn and correctly identified.
    • Correct drawing is identified, equipment are selected and used in accordance with job requirements.
  4. Store technical drawings and equipment /instruments
    • Care and maintenance of drawings are undertaken according to company procedures.
    • Technical drawings are recorded and inventory is prepared in accordance with company procedures.
    • Proper storage of instruments is undertaken according to company procedures.


This unit covers the knowledge, skills, (and) attitudes and values needed to apply quality standards in the workplace.

The unit also includes the application of relevant safety procedures and regulations, organization procedures and customer requirements

  1. Assess quality of received materials or components
    • Work instructions are obtained and work is carried out in accordance with standard operating procedures
    • Received materials or component parts are checked against workplace standards and specifications
    • Faulty material or components related to work are identified and isolated
    • Faults and any identified causes are recorded and/or reported to the supervisor concerned in accordance with workplace procedures
    • Faulty materials or components are replaced in accordance with workplace procedures
  2. Assess own work
    • Documentation relative to quality within the company is identified and used
    • Completed work is checked against workplace standards relevant to the task undertaken
    • Faulty pieces are identified and isolated
    • Information on the quality and other indicators of production performance is recorded in accordance with workplace procedures
    • Deviations from specified quality standards, causes are documented and reported in accordance with the workplace’ standards operating procedures
  3. Engage in quality improvement
    • Process improvement procedures are participated in relation to workplace assignment
    • Work is carried out in accordance with process improvement procedures
    • Performance of operation or quality of product or service to ensure customer satisfaction is monitored


This unit covers the knowledge, skills, (and) attitudes and values needed to perform computer operations which include inputting, accessing, producing and transferring data using the appropriate hardware and software

  1. Plan and prepare for task to be undertaken
    • Requirements of task are determined according to job specifications
    • Appropriate hardware and software are selected according to task assigned and required outcome
    • Task is planned to ensure OH & S guidelines and procedures are followed
  2. Input data into computer
    • Data are entered into the computer using appropriate program/application in accordance with company procedures
    • Accuracy of information is checked and information is saved in accordance with standard operating procedures
    • Inputted data are stored in storage media according to requirements
    • Work is performed within ergonomic guidelines
  3. Access information using computer
    • Correct program/application is selected based on job requirements
    • Program/application containing the information required is accessed according to company procedures
    • Desktop icons are correctly selected, opened and closed for navigation purposes
    • Keyboard techniques are carried out in line with OH & S requirements for safe use of keyboards
  4. Produce/output data using computer system
    • Entered data are processed using appropriate software commands
    • Data printed out as required using computer hardware/peripheral devices in accordance with standard operating procedures
    • Files, data are transferred between compatible systems using computer software, hardware/ peripheral devices in accordance with standard operating procedures
  5. Maintain computer equipment and systems
    • Systems for cleaning, minor maintenance and replacement of consumables are implemented
    • Procedures for ensuring security of data, including regular back-ups and virus checks are implemented in accordance with standard operating procedures
    • Basic file maintenance procedures are implemented in line with the standard operating procedures


This unit covers the knowledge, skills, attitudes and values needed to terminate and connect electrical wiring and electronic circuits

  1. Plan and prepare for termination/connection of electrical wiring/electronics circuits
    • Materials are checked according to specifications and tasks
    • Appropriate tools and equipment are selected according to tasks requirements
    • Task is planned to ensure OH & S guidelines and procedures are followed
    • Electrical wiring/electronic circuits are correctly prepared for connecting/termination in accordance with instructions and work site procedures
  2. Terminate/connect electrical wiring/electronic circuits
    • Safety procedures in using tools are observed at all times and appropriate personal protective equipment are used
    • Work is undertaken safely in accordance with the workplace and standard procedures
    • Appropriate range of methods in termination/connection are used according to specifications, manufacturer’s requirements and safety
    • Correct sequence of operation is followed according to job specifications
    • Accessories used are adjusted, if necessary
    • Confirm termination/connection undertaken successfully in accordance with job specification
  3. Test termination/connections of electrical wiring/electronics circuits
    • Testing of all completed termination/ connections of electric wiring/electronic circuits is conducted for compliance with specifications and regulations using appropriate procedures and equipment
    • Wiring and circuits are checked using specified testing procedures
    • Unplanned events or conditions are responded to in accordance with established procedures


UNIT CODE : 500311115

This unit covers the knowledge, skills and attitudes required to use specialized communication skills to meet specific needs of internal and internal clients, conduct interviews, facilitate group of discussions, and contribute to the development of communication strategies.

  1. Meet common and specific communication needs of clients and colleagues
    • Specific communication needs of clients and colleagues are identified and met
    • Different approaches are used to meet communication needs of clients and colleagues
    • Conflict is addressed promptly and in a timely way and in a manner which does not compromise the standing of the organization
  2. Contribute to the development of communication strategies
    • Strategies for internal and external dissemination of information are developed, promoted, implemented and reviewed as required
    • Channels of communication are established and reviewed regularly
    • Coaching in effective communication is provided
    • Work related network and relationship are maintained as necessary
    • Negotiation and conflict resolution strategies are used where required
    • Communication with clients and colleagues is appropriate to individual needs and organizational objectives
  3. Represent the organization
    • When participating in internal or external forums, presentation is relevant, appropriately researched and presented  in a manner to promote the organization
    • Presentation is clear and sequential and delivered within a predetermined time
    • Utilize appropriate media to enhance presentation
    • Differences in views are respected
    • Written communication is consistent with organizational standards
    • Inquiries are responded in a manner consistent with organizational standard
  4. Facilitate group discussion
    • Mechanisms which enhance effective group interaction is defined and implemented
    • Strategies which encourage all group members to participate are used routinely
    • Objectives and agenda for meetings and discussions are routinely set and followed
    • Relevant information is provided to group to facilitate outcomes
    • Evaluation of group communication strategies is undertaken to promote participation of all parties
    • Specific communication needs of individuals are identified and addressed
  5. Conduct interview
    • A range of appropriate communication strategies are employed in interview situations
    • Records of interviews are made and maintained in accordance with organizational procedures
    • Effective questioning, listening and nonverbal communication techniques are used to ensure that required message is communicated

UNIT CODE : 500311116

This unit covers the skills, knowledge and attitudes required to determine individual and team development needs and facilitate the development of the workgroup.

  1. Provide team leadership
    • Learning and development needs are systematically identified and implemented in line with organizational requirements
    • Learning plan to meet individual and group training and developmental needs is collaboratively developed and implemented
    • Individuals are encouraged to self evaluate performance and identify areas for improvement
    • Feedback on performance of team members is collected from relevant sources and compared with established team learning process
  2. Foster individual and organizational growth
    • Learning and development program goals and objectives are identified to match the specific knowledge and skills requirements of competency standards
    • Learning delivery methods are appropriate to the learning goals, the learning style of participants and availability of equipment and resources
    • Workplace learning opportunities and coaching/mentoring assistance are provided to facilitate individual and team achievement of competencies
    • Resources and timelines required for learning activities are identified and approved in accordance with organizational requirements
  3. Monitor and evaluate workplace learning
    • Feedback from individuals or teams is used to identify and implement improvements in future learning arrangements
    • Outcomes and performance of individuals/teams are assessed and recorded to determine the effectiveness of development programs and the extent of additional support
    • Modifications to learning plans are negotiated to improve the efficiency and effectiveness of learning
    • Records and reports of competency are maintained within organizational requirement
  4. Develop team commitment and cooperation
    • Open communication processes to obtain and share information is used by team
    • Decisions are reached by the team in accordance with its agreed roles and responsibilities
    • Mutual concern and camaraderie are developed in the team
  5. Facilitate accomplishment of organizational goals
    • Team members actively participated in team activities and communication processes
    • Teams members developed individual and joint responsibility for their actions
    • Collaborative efforts are sustained to attain organizational goals

UNIT CODE : 500311117

This competency covers the knowledge, skills and attitudes required to apply the process of problem solving and other problems beyond those associated directly with the process unit. It includes the application of structured processes and improvement tools. This competency is typically performed by an experienced technician, team leader or supervisor.

  1. Analyze the problem
    • Issues/concerns are evaluated based on data gathered
    • Possible causes of problem are identified within the area of responsibility as based on experience and the use of problem solving tools/analytical techniques
    • Possible cause statements are developed based on findings
  2. Identify possible solutions
    • All possible options are considered for resolution of the problem in accordance with safety and operating procedures
    • Strengths and weaknesses of possible options are considered
    • Corrective action is determined to resolve the problem and its possible future causes
  3. Recommend solution to higher management
    • Report/communication or documentation are prepared
    • Recommendations are presented to appropriate personnel
    • Recommendations are followed-up, if required
  4. Implement solution
    • Measurable objectives are identified
    • Resource needs are identified
    • Timelines are identified in accordance with plan
  5. Evaluate/Monitor results and outcome
    • Processes and improvements are identified based on evaluative assessment of problem
    • Recommendations are prepared and submitted to superiors.

UNIT CODE : 500311118

This unit covers the outcomes required to process, analyze, interpret and organize workplace information and other relevant data.

  1. Study information requirements
    • Needs are identified using established research procedures
    • Relevant forms and recording systems are used to gather the information.
    • Respondents are selected to implement survey / research based on established procedures.
  2. Process data
    • Data are collected and collated based on the prescribed method.
    • Relevant data are used as references in accordance with the objectives of the program.
    • Information is compiled according to the required form.
  3. Analyze, interpret and organize information gathered
    • Data are analyzed using relevant methodologies
    • Where applicable, statistical analysis/methods are employed according to the objectives of the program
    • Graphs and other visual presentations are prepared to facilitate analysis / interpretation of information
  4. Present findings/recommendations
    • Findings/recommendations summarized and presented/packaged in user-friendly manner
    • Relevant inputs gathered to finalize report
    • Draft report prepared based on standard format.
    • Technical reports are submitted and disseminated to concerned offices.

UNIT CODE : 500311119

This unit covers the outcomes required in planning and organizing work. It may be applied to a small independent operation or to a section of a large organization.

  1. Set objectives
    • Objectives are consistent with and linked to work activities in accordance with organizational aims
    • Objectives are stated as measurable targets with clear time frames
    • Support and commitment of team members are reflected in the objectives
    • Realistic and attainable objectives are identified
  2. Plan and schedule work activities
    • Tasks/work activities to be completed are identified and prioritized as directed
    • Tasks/work activities are broken down into steps in accordance with set time frames achievable components in accordance with set time frames
    • Resources are allocated as per requirements of the activity
    • Schedule of work activities is coordinated with personnel concerned
  3. Implement work plans
    • Work methods and practices are identified in consultation with personnel concerned
    • Work plans are implemented in accordance with set time frames, resources and standards
  4. Monitor work activities
    • Work activities are monitored and compared with set objectives
    • Work performance is monitored
    • Deviations from work activities are reported and recommendations are coordinated with appropriate personnel and  in accordance with set standards
    • Reporting requirements are complied with in accordance with recommended format
    • Observe timeliness of report
    • Files are established and maintained in accordance with standard operating procedures
  5. Review and evaluate work plans and activities
    • Work plans, strategies and implementation are reviewed based on accurate, relevant and current information
    • Review is based on comprehensive consultation with appropriate personnel on outcomes of work plans and reliable feedback
    • Results of review are provided to concerned parties and formed as the basis for adjustments/simplifications to be made to policies, processes and activities
    • Performance appraisal is conducted in accordance with organization rules and regulations
    • Performance appraisal report is prepared and documented regularly as per organization requirements.
    • Recommendations are prepared and presented to appropriate personnel/authorities
    • Feedback mechanisms are implemented in line with organization policies

UNIT CODE : 500311120

This unit covers the knowledge, skills and attitudes required in adhering to environmental protection principles, strategies and guidelines

  1. Study guidelines for environmental concerns.
    • Environmental legislations/conventions and local ordinances are identified according to the different environmental aspects/impact.
    • Industrial standard/environmental practices are described according to the different environmental concerns.
  2. Implement specific environmental programs.
    • Programs/Activities are identified according to organizations policies and guidelines.
    • Individual roles/responsibilities are determined and performed based on the activities identified.
    • Problems/ constraints encountered are resolved in accordance with organizations’ policies and guidelines
    • Stakeholders are consulted based on company guidelines.
  3. Monitor activities on environmental protection/programs
    • Activities are periodically monitored and evaluated according to the objectives of the environmental program
    • Feedback from stakeholders are gathered and considered in proposing enhancements to the program based on consultations
    • Data gathered are analyzed based on evaluation requirements
    • Recommendations are submitted based on the findings.
    • Management support systems are set/established to sustain and enhance the program
    • Environmental incidents are monitored and reported to concerned/proper authorities.



  • Certification – is the process of verifying and validating the competencies of a person through assessment
  • Certificate of Competency (COC) – is a certification issued to individuals who pass the assessment for a single unit or cluster of units of competency
  • Common Competencies – are the skills and knowledge needed by all people working in a particular industry
  • Competency – is the possession and application of knowledge, skills and attitudes to perform work activities to the standard expected in the workplace
  • Competency Assessment – is the process of collecting evidence and making judgments on whether competency has been achieved
  • Competency Standard (CS) – is the industry-determined specification of competencies required for effective work performance
  • Context of Assessment – refers to the place where assessment is to be conducted or carried out
  • Core Competencies – are the specific skills and knowledge needed in a particular area of work – industry sector/occupation/job role
  • Critical aspects of competency – refers to the evidence that is essential for successful performance of the unit of competency
  • Elective Competencies – are the additional skills and knowledge required by the individual or enterprise for work
  • Elements – are the building blocks of a unit of competency. They describe in outcome terms the functions that a person performs in the workplace.
  • Evidence Guide – is a component of the unit of competency that defines or identifies the evidences required to determine the competence of the individual. It provides information on critical aspects of competency, underpinning knowledge, underpinning skills, resource implications, assessment method and context of assessment
  • Level – refers to the category of skills and knowledge required to do a job
  • Method of Assessment – refers to the ways of collecting evidence and when,
    evidence should be collected
  • National Certificate (NC) – is a certification issued to individuals who achieve all the required units of competency for a national qualification defined under the Training Regulations. NCs are aligned to specific levels within the PTQF
  • Performance Criteria – are evaluative statements that specify what is to be assessed and the required level of performance
  • Qualification – is a cluster of units of competencies that meets job roles and is significant in the workplace. It is also a certification awarded to a person on successful completion of a course in recognition of having demonstrated competencies in an industry sector
  • Range of Variables – describes the circumstances or context in which the work is to be performed
  • Recognition of Prior Learning (RPL) – is the acknowledgement of an individual’s skills, knowledge and attitudes gained from life and work experiences outside registered training programs
  • Resource Implications – refers to the resources needed for the successful performance of the work activity described in the unit of competency. It includes work environment and conditions, materials, tools and equipment
  • Basic Competencies – are the skills and knowledge that everyone needs for work
  • Training Regulations (TR) – refers to the document promulgated and issued by TESDA consisting of competency standards, national qualifications and training guidelines for specific sectors/occupations. The TR serves as basis for establishment of qualification and certification under the PTQF. It also serves as guide for development of competency-based curricula and instructional materials including registration of TVET programs offered by TVET providers
  • Underpinning Knowledge – refers to the competency that involves in applying knowledge to perform work activities. It includes specific knowledge that is essential to the performance of the competency
  • Underpinning Skills – refers to the list of the skills needed to achieve the elements and performance criteria in the unit of competency. It includes generic and industry specific skills
  • Unit of Competency – is a component of the competency standards stating a specific key function or role in a particular job or occupation; it is the smallest component of achievement that can be assessed and certified under the PTQF


  • Equipment – A component part of an installation used for a particular purpose. Equipment includes, but is not limited to, that contained in the following divisions. It will necessarily include new and emerging technologies:
    • Audio/visual equipment including televisions, radios, monitors, cameras, closed circuit television, mono and stereo sound systems, gaming machines, electronic display panels, cassette recorders, video cassette recorders, CDROM players, tape recorders, sound and video duplication equipment, digital versatile discs, digital audio tapes, professional and domestic speaker systems, mixer desks.
    • Appliances including portable electric tools, motor driven pumps, vacuum cleaners, food preparation equipment, hair dryers, refrigerators, washing machines, dish washers, paper shredders, water coolers, clothes dryers, pest exterminators, electric motor driven industrial tools and equipment, sanitary disposal units, radial and tangential fans and blowers.
  • Appliances – A fixed (for support only), hand-held (held in hand during normal use), portable (moved whilst in operation or easily moved from one place to another while connected to the supply) or stationary (can be moved, but not easily) consuming device, other than a lamp.
  • Competent person – A person who has the relevant competencies described in this competency
  • Component – That portion of a unit of equipment, which has been designed as a discrete unit and that can be identified as such.
  • Environment – The area surrounding the work site which can be directly or indirectly affected by occurrences at the work site. It includes the atmosphere, soils, drains, underground water tables, and the ecosystem. Protection of the environment would require the proper disposal of waste materials, restriction of burning off, the correct handling of toxic substances, the containment of CFCs and the like.
  • Established procedures – Formal arrangements of an organization, enterprise or statutory authority of how work is to be done.
  • Hazardous materials – Flammable gases and vapors and combustible dusts.
  • Modifications – To make changes to the physical parameters or operational function of a device, component or piece of equipment or apparatus.
  • Notification (notified) – Can include verbal, written, electronic or recorded information at completion of work which may be required to be completed in accordance with established procedures.