Glossary Updates12 new terms added to the glossaries · October 2, 2026, 22:44 CEST
AI TechDocKnowledge

Glossary · Safe work, maintenance and competence

Qualified person

In occupational safety, a qualified person is a person with demonstrated skills and knowledge related to the task, the equipment and its hazards. The qualification is shown, for example, through a recognized degree, certificate, training or experience.

  • Machine safety
  • Human factors
  • USA

In one sentence

A qualified person has shown the skills and knowledge for a specific task and its hazards. The qualification is task-specific, not general.

Example

Only a qualified person trained on the specific drive system may troubleshoot the energized control cabinet of a press, while operators may only reset the machine.

Explained in context

Context cards connect this term with others to answer one question. Also in British English and German.

How it applies

  • USA: OSHA uses “qualified person” in several standards, with definitions that differ between them, for example for electrical work. Check the definition in the rule that applies.
  • Machine safety: Instructions for use often reserve tasks for qualified personnel, such as electrical work or safety parameterization. State which qualification is meant, not just “qualified staff”.
  • Technical documentation: Define target groups and their required qualifications once, and refer to them in each task. That makes the instructions testable against real roles.
  • Evidence: Competency assessment records support each designation.

Qualified person vs. competent person

A qualified person has demonstrated task-specific skills and knowledge. A competent person can identify hazards and has authority to correct them. For work on live parts, electrical hazards typically require a qualified person.

By knowledge.aitechdoc.world · Published September 25, 2026 · Last reviewed

Source: AI TechDoc Knowledge editorial definition, based on ISO 45001:2018, Occupational health and safety management systems

Definitions follow the cited standards and specifications. Where a source is a copyrighted publication, such as an ISO, IEC or EN standard, the definition is a close paraphrase, not a verbatim quotation, so as not to infringe copyright. We recommend reading the original publication. The sections “How it applies” are editorial commentary by AI TechDoc Knowledge and are not part of any standard.

Seen a mistake? Send us a note!