A joint Australia/New Zealand project defined the following ergonomics competencies.
• A superior knowledge of available ergonomics information
• A command of the methodologies used by ergonomists in applying that knowledge to the design of a product, system, job, or environment
• Applied his or her knowledge in the analysis, design, testing and evaluation of products, systems, jobs and environments.
The requirements for certification reflect this definition.

UNIT 1: Demonstrates professional behaviour and conduct in practice.
Element 1.1: Practices in a professional and ethical manner.
Element 1.2: Aware of the diversity of practice areas within the profession of ergonomics.
Element 1.3: Recognises the scope and limitations of the existing knowledge base of the profession during practice.
Element 1.4: Contributes to the validation of ergonomics practice through research as appropriate.
Element 1.5: Assumes responsibility for, and actively works to enhance, the level of own professional practice.
Element 1.6: Communicates effectively with clients, users, other professionals and members of the public.
Element 1.7: Strives to ensure optimal outcomes for clients and users within ethical considerations of the profession.
Element 1.8: Understands the industrial, legal and liability issues that impact upon an ergonomist's area of professional practice.
Element 1.9: Promotes the application of ergonomics.

UNIT 2: Uses relevant information appropriately for ergonomics practice.
Element 2.1: Has knowledge of the basic principles of ergonomics during assessment.
Element 2.2: Determines appropriate information for ergonomics practice.
Element 2.3: Accesses appropriate information.
Element 2.4: Uses information appropriately.

UNIT 3: Assesses the degree of match between people and their activities, equipment, environment and systems.
Element 3.1: Appreciates the extent of human variability.
Element 3.2: Determines the demands placed on people by their activities, equipment, environment and systems.
Element 3.3: Determines people's capacity to interact optimally with their activities, equipment, environment and systems .
Element 3.4: Determines the match between people and their activities, equipment, environment and systems.

UNIT 4: Designs and implements interventions to enhance the match between people and their activities, equipment, environment and systems.
Element 4.1: Consults and collaborates effectively with clients and users when developing, selecting and implementing optimal intervention/designs(s).
Element 4.2: Participates effectively in the design process.
Element 4.3: Develops and recommends options for ergonomics intervention/design.
Element 4.4: Facilitates selection of appropriate intervention/design.
Element 4.5: Facilitates implementation of interventions.
Element 4.6: Provides advice on the impact of legislation, codes of practice, Australian Standards and industry-based standards relevant to professional area of ergonomics practice.
Element 4.7: Records and reports outcomes of ergonomics assessments and interventions accurately and professionally.

UNIT 5: Evaluates ergonomics interventions.
Element 5.1: Evaluates quality and outcomes of ergonomics interventions.
Element 5.2: Facilitates modification of intervention as required, in accordance with evaluation results.
Element 5.3: Makes recommendations regarding future interventions as a result of the evaluation.

UNIT 6: Imparts ergonomics skills and information.
Element 6.1: Identifies client/user learning needs and opportunities.
Element 6.2: Formulates strategies for transfer of relevant knowledge and skills.
Element 6.3: Develops and conducts appropriate ergonomics-related education and training.