EN 15628:2025

SLOVENSKI STANDARD
01-december-2025
Nadomešča:
SIST EN 15628:2014
Vzdrževanje - Kvalificiranje vzdrževalcev
Maintenance - Qualification of maintenance personnel
Instandhaltung - Qualifikation des Instandhaltungspersonals
Maintenance - Qualification du personnel de la maintenance
Ta slovenski standard je istoveten z: EN 15628:2025
ICS:
03.080.10 Vzdrževalne storitve. Maintenance services.
Upravljanje objektov Facilities management
03.100.30 Vodenje ljudi Management of human
resources
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 15628
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2025
EUROPÄISCHE NORM
ICS 03.080.10 Supersedes EN 15628:2014
English Version
Maintenance - Qualification of maintenance personnel
Maintenance - Qualification du personnel de Instandhaltung - Qualifikation des
maintenance Instandhaltungspersonals
This European Standard was approved by CEN on 29 September 2025.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 15628:2025 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Competences for personnel of maintenance . 7
4.1 General. 7
4.2 Competences of a maintenance technician specialist . 7
4.3 Competences of a maintenance supervisor . 8
4.4 Competences of a maintenance engineer. 9
4.5 Competences of a maintenance manager . 9
5 Skills and knowledge . 10
6 Essential requirements and experience . 22
6.1 General. 22
6.2 Maintenance technician specialist. 22
6.3 Maintenance supervisor . 22
6.4 Maintenance engineer . 22
6.5 Maintenance manager . 22
Annex A (informative) Example of maintenance organizational structure . 24
Annex B (informative) List of knowledge . 25
Bibliography . 27

European foreword
This document (EN 15628:2025) has been prepared by Technical Committee CEN/TC 319
“Maintenance”, the secretariat of which is held by UNI.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by May 2026, and conflicting national standards shall be
withdrawn at the latest by May 2026.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 15628:2014.
— revision of the structure to make the document consistent with EN 17007 describing the
maintenance process which result in new structure;
— addition of a new role: Maintenance Engineer;
— determination of the knowledge required according to the maintenance actions to be performed;
— full consideration of the recommendations included in the European Qualification Framework
(Recommendation 2008/C 111/01 of the European Parliament and of the Council of 23 April 2008 on
the establishment of the European Qualifications Framework for lifelong learning).
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Introduction
Due to the growing extent and increasing complexity of maintenance in the European industry, diverse
occupational profiles have evolved for maintenance personnel in different member states. This
document specifies basic and target qualifications and corresponding associated competences, skills,
and knowledge.
The recommended requirements aim to ensure specific qualifications and highly qualified professional
personnel across various maintenance functions and positions.
This document is part of a set of maintenance standards produced by CEN/TC 319. All these standards
contain maintenance knowledge and are naturally related to this document. The available CEN/TC 319
maintenance standards can be divided into four groups: Common Base, Management, Methodologies
and Resources. This document belongs to the Resources group.
1 Scope
This document specifies qualification of the personnel regarding the tasks to be performed in the
context of the maintenance of plant, infrastructure and production systems to fulfil the requirements of
the maintenance job.
This document describes the knowledge, skills and competencies required for the qualification of
maintenance personnel. These guidelines can be used for training, skills validation of maintenance
personal and career planning.
This document covers the following professional roles in the maintenance organization:
— Maintenance Technician Specialist;
— Maintenance Supervisor;
— Maintenance Engineer;
— Maintenance Manager.
These designations can be adapted based on company practices and operational organization. An
example of an organizational structure can be seen in Annex A.
This document does not specify the verification criteria nor the specialized training of the personnel,
which is related to specific sectors.
NOTE Specialization and profession are the subjects of the training carried out in the relevant sector.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 13306:2017, Maintenance - Maintenance terminology
EN 17007, Maintenance process and associated indicators
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 13306:2017 and the following
apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp/
— IEC Electropedia: available at https://www.electropedia.org/
3.1
competence
proven ability to use knowledge, skills and personal, social and/or methodological abilities, in work or
study situations and in professional and personal development
Note 1 to entry: Competence is described in terms of responsibility and autonomy.
[SOURCE: EU Recommendation 2008/C 111/01, Annex 1, (i), modified — The present Note 1 to entry
was a sentence that completed the original definition.]
3.2
knowledge
outcome of the assimilation of information through learning
Note 1 to entry: Knowledge is the body of facts, principles, theories and practices related to a field of work or
study.
[SOURCE: EU Recommendation 2008/C 111/01, Annex 1, (g), modified — the present Note 1 to entry
was a sentence that completed the original definition.]
3.3
level of qualification
ability of a professional with regard to a particular subject
Note 1 to entry: The levels of qualification in the maintenance field include the Maintenance Technician Specialist,
Maintenance Supervisor, Maintenance Engineer and Maintenance Manager (i.e. the person in charge of the
Maintenance Function or Service).
3.4
procedure
set of instructions that indicate standardized practices, operational instructions and technical rules
referred to the involved competence
3.5
qualification
formal outcome of an assessment and validation process obtained when a competent body determines
that an individual has achieved learning outcomes to given standards
Note 1 to entry: The types of qualification, subject of this document and outlined below, are consistent with the
European Qualifications Framework (EQF) for lifelong learning. Specifically, maintenance personnel have
adequate competences, skills and knowledge to operate safely, properly, effectively and efficiently, as described in
Clause 4.
[SOURCE: EU Recommandation 2008/C 111/01, Annex 1, (a)]
3.6
skills
ability to apply knowledge and use know-how to complete tasks and solve problems
Note 1 to entry: Skills are described as cognitive (involving the use of logical, intuitive and creative thinking) or
practical (involving dexterity and the use of methods, materials, tools and instruments).
[SOURCE: EU Recommendation 2008/C 111/01, Annex 1, (h), modified — The present Note 1 to entry
was a sentence that completed the original definition.]
3.7
maintenance technician specialist
person responsible together with production and other technical personnel for the availability and good
physical condition of equipment/items
Note 1 to entry: Individual performs observations and preventive and corrective maintenance activities on items
with the support of stakeholders and according to laws, directives, operating instructions, and commonly
accepted good practices. Complementing their expertise is a keen problem-solving aptitude that makes them
capable of analysing and detecting faults and identifying their root causes
Note 2 to entry: The skills, abilities, and knowledge of non-specialized operators or technicians are not described
in this document, it is the responsibility of each company to define them according to its context.
3.8
maintenance supervisor
person responsible for implementing, controlling and supervising the maintenance activities carried
out by maintenance technicians and/or subcontracting companies, in close relationship with
stakeholders (management, operations, support services, etc.)
3.9
maintenance engineer
person who applies engineering concepts to consider maintenance aspects during design, ensures
proper operation and condition of items, helps resolve maintenance issues, and guides other
stakeholders (technicians, supervisors, managers, etc.) to achieve the objectives
Note 1 to entry: The definition of Maintenance Engineer is a description of a role not an academic title
3.10
maintenance manager
person responsible for contributing to the maintenance policy and maintenance strategy, in line with
the company’s business model/Asset Management strategy, controlling, and coordinating maintenance
activities to achieve the objectives defined in the maintenance policy and strategy
4 Competences for personnel of maintenance
4.1 General
Competencies have long been used as a framework to help focus employee’s behaviour on things that
matter most to an organization and help drive success. For managers, they provide resources to help
recruit and develop employees and provide feedback to guide continuous improvement performance.
The different levels are part of a hierarchical organizational structure that determines their
responsibilities described in Annex A.
4.2 Competences of a maintenance technician specialist
The competences of the maintenance technician specialist enable the fulfilment of the following
maintenance tasks:
— perform or ensure the safe execution of maintenance plans according to maintenance strategies;
— act promptly in case of failure or malfunction, ensuring the effectiveness of the restoration;
— perform or ensure proper execution according to laws, rules and procedures relating to safety,
health and environmental protection;
— identify and request the availability of materials, tools and equipment necessary for the execution
of maintenance tasks;
— ensure that maintenance tasks are performed according to the best maintenance practices and the
state of the art;
— coordinate and/or supervise on-site maintenance tasks;
— report results of maintenance activity;
— use or domain of ICT (Information and communication technology) systems, computerized
maintenance management system (CMMS), etc.
NOTE Tentatively, maintenance technician specialist can refer to EQF levels 4 or 5.
4.3 Competences of a maintenance supervisor
The maintenance supervisor normally works at the level of the asset management system and controls
the processes to achieve objectives, with specific roles that can be executed exclusively or in joint
responsibility.
Depending on organizational complexity and the size of the company, the maintenance supervisor and
the maintenance engineer can be two separate professionals or to be combined into one person.
The maintenance supervisor coordinates maintenance tasks according to the budget, related
maintenance plans and unplanned maintenance tasks. Furthermore, the maintenance supervisor
contributes to ensure the required plant performance (measured by key performance indicators), based
on the company's or departments technical objectives, including the following maintenance tasks:
— ensure the implementation of maintenance activities follows defined maintenance strategies and
policies;
— plan the maintenance tasks within their area of responsibility, defining and organizing the
necessary resources;
— organize, manage and develop maintenance human resources;
— organize, manage and develop availability of materials, maintenance equipment resources,
infrastructures (workshop, warehouse, etc.), tools, documentation and the collection and
processing of data;
— ensure compliance with laws, regulations, rules and procedures related to safety, health and
environment;
— ensure technical effectiveness and efficiency of maintenance tasks based the current state of
technology and especially the use of new technologies without neglecting the active role expressed
by organizations and people;
— participate in the technical aspects of contracts and procurement process and manage the
performance of contractors;
— participate in defining of the initial reliability, maintainability and maintenance support
requirements during the design phase of item investments and modifications;
— communicate with all necessary partners such as staff, contractors, customers and suppliers.
NOTE Tentatively, maintenance supervisor can refer to EQF levels 5 or 6.
4.4 Competences of a maintenance engineer
The maintenance engineer works in the level of the maintenance management system and
contributes/improves to the maintenance processes. The maintenance engineer work in specific roles
which can be executed exclusively or in joint responsibility.
Competences, knowledge and skills in maintenance engineering are explained in more detail in
EN 17666.
The maintenance engineer works with or supports the maintenance manager on the definition of
maintenance plans and the identification and training of the required qualified human resources for the
execution and the control of maintenance tasks and the analysis of budget variances. Furthermore, the
maintenance engineer recommends improvement projects related to the availability, reliability,
maintainability and safety of assets, including the following maintenance tasks:
— participate in the definition of the initial reliability, maintainability and maintenance support
requirements during the design phase of item investments and modifications;
— use their technical/engineering knowledge and organizational tools to improve maintenance tasks
and plant efficiency in terms of availability, reliability and cost;
— support organizing, managing and developing material management and maintenance equipment
resources, infrastructures (workshop, warehouse, etc.), tools and documentation;
— fulfil organizational and economical obligations in the field of their undertaken tasks.
NOTE Tentatively, maintenance engineer can refer to EQF levels 6 or 7.
4.5 Competences of a maintenance manager
The maintenance manager coordinates activities to realize value with its assets and is responsible for
ensuring maintenance objectives (based on key performance indicators), including the following ability
to:
— define and develop maintenance strategies and policies according to company strategic asset
management plan (SAMP);
— define processes and tools to support maintenance activities;
— define, manage and develop the organizational model of maintenance;
— ensure the levels of availability, reliability, maintainability, supportability, quality and costs
required for the entire useful life of assets;
— ensure the safety of maintenance personnel, users and the environment;
— ensure appropriate management and continuous improvement of maintenance;
— ensure and control the compliance with maintenance and company budget, the respect for planned
maintenance tasks and the proper condition of assets;
— define strategies, policies and criteria for performance management of own staff and contractors
and for the definition of maintenance materials requirements;
— define the initial reliability, maintainability and maintenance support requirements during the
design phase of item investments and modifications;
— drafting plans and programs, in cooperation with the maintenance engineer for managing the waste
disposal process (circular economy);
— manage the reuse and retention of assets through the adoption of product life management policies
(sustainability policies);
— communicate decisions and results.
NOTE Tentatively, maintenance manager can refer to EQF levels 6 or 7.
5 Skills and knowledge
Generally, knowledge, skills, and associated competencies can be divided into:
— basic knowledge (reading, writing, mathematics, physics, etc.) taught at school;
— specialized skills related to professions, particularly maintenance professions;
— soft skills related to social relationships, particularly in the workplace (respect for rules, teamwork,
leadership, curiosity, initiative, etc.), essential for working in a company or organization.
This document specifically concerns maintenance competencies, skills, and knowledge, but other skills
are also essential, even if they are not mentioned here, particularly knowledge of English, which is often
required.
The competencies and skills required to carry out maintenance activities shall be according to the
generic description of the maintenance process in EN 17007 which are listed in Table 1. The standards
developed have the principal influence of industry, production, and infrastructure sectors. However, the
document can be used and adapted in other sectors, such as the building sector.
The skills and knowledge needed by maintenance personnel are categorized, according to the Process
families of EN 17007 into: management, realization and support. The skills and knowledge are not
listed in prioritized importance.
The associated knowledge requirements depend on the industrial sectors. Companies and organisations
should use this list of knowledge to define their own requirements making it possible to ensure the
required competences and skills.
In Table 1 skills and knowledge expected of maintenance personnel to carry out different types of
processes: management, realization and support. The T/S/E/M columns indicate for technicians (T),
supervisors (S), engineers (E), and managers (M). The expected level for the different skills as follows
(the classification is an proposal and need to be adapted accordingly):
— Basic knowledge (level 1)
Has a basic knowledge and the ability to be effective in common and simple situations. It can be
supervised or monitored by a more competent and experienced professional.
— Intermediate (level 2)
Has general and theoretical knowledge and can handle common and simple situations without being
supervised. Level 2 does not have solid experience but can act autonomously.
— Advanced (level 3)
Has in-depth theoretical and practical knowledge in the field and solid experience allowing then to
implement know-how autonomously in common and complex situations.
— Expert (level 4)
Has recognized expertise in the field allowing then to manage complex and unusual situations. Is
considered a specialist and able to teach and transmit the knowledge.
Knowledge elements are relevant for various competences and skills and can be found in several places
in Table 1. For example, knowledge about “subcontracting, outsourcing, and insourcing” contributes to
different skills required for competences “manage maintenance”, “provide external maintenance
services”, “deliver spare parts”. The last column of Table 1 indicates the reference number of knowledge
classified into chapters in Annex B.
Table 1 — Competences and skills (Should be adapted to the organization needs):
Competence: to be able to manage maintenance
Skills: to be able to: T S E M Knowledge See Annex B
a) Establish the 1 3 3 4 Maintenance and Sustainability 1.1
maintenance policy,
Relation of Maintenance within physical asset 1.3
strategy and
management
development actions
Maintenance policy and strategy 2.1
Management of relationship with partners 1.2
Maintenance management methods 2.2
Maintenance and investment decisions 1.4
Decision making in maintenance 2.9
Good practices and rules, methods and procedures to 4.4
ensure occupational safety, health, and environment
Innovative maintenance (enabling technologies 4.0 and 5.16
5.0) including Big data and Digital twins for maintenance
Modelling and simulation of maintenance strategies 5.6
b) Identify the internal 2 4 3 4 Mapping and evaluations of skills and competences of 6.1
or external activities maintenance personnel
(carried out by the
Contracting, outsourcing and insourcing 2.3
staff of the user
company or
Organizational models and job descriptions 2.6
participating
companies)
c) Determine the 1 3 3 4 Maintenance process description and roles and 2.5
organization, job responsibilities
profiles and
Organizational models and job descriptions 2.6
responsibilities
Mapping and evaluations of skills and competence of 6.1
maintenance personnel
d) Prepare and 1 4 3 4 Management of Maintenance costs structure and budget, 2.7
negotiate the budgets accounting
Maintenance and investment decisions 1.4
Fundamentals of projects management 2.8
e) Oversee the actions 2 3 4 4 Fundamentals of projects management 2.8
Relations between Operation and Maintenance staff 3.1
f) Define, select, 2 4 4 4 Management of KPI (Key Performance Indicators) and 2.11
analyse and benchmarking
communicate the
Relation of Maintenance within physical asset 1.3
information
management
Communication and presentation techniques (including 6.3
the role of communication)
Management of relationship with partners 1.2
g) Define policy and 2 3 4 4 Methodologies and tools for continuous improvement 2.14
strategy areas of
Decision making in maintenance 2.9
improvement
Competence: to be able to prevent undesirable events by avoiding failures and faults
Skills: to be able to: T S E M Knowledge (to be adapted to the organization needs) See Annex B
a) Characterize the 3 4 4 2 Materials and equipment technologies 5.1
undesirable events
Principles and analysis of failure mechanisms 5.3
(failures and faults)
Methods for developing maintenance plans based on 5.5
criticality analysis (FMECA, RCM, etc.)
b) Use and update the 4 3 4 2 Methods for developing maintenance plans based on 5.5
Maintenance Plans criticality analysis (FMECA, RCM, etc.)
Modelling and simulation of maintenance strategies 5.6
Condition monitoring techniques (vibration, 5.10
thermography, oil analyses …)
Predictive maintenance and Remaining useful life 5.12
assessment
Non-Destructive Testing (ultrasonic testing, Eddy 5.11
current, radiography, etc.)
Active maintenance techniques 3.2
Robotics, remote handling, and augmented reality 5.17
techniques
Principles, logic and parameters of operation of item 5.2
taking care of wear and damage mechanisms
Principles and methods for maintenance tasks 5.7
monitoring
Competence: to be able to restore the items to their required state
Skills: to be able to: T S E M Knowledge (to be adapted to the organization needs) See Annex B
a) Classify the actual 3 3 4 2 Methods for developing maintenance plans based on 5.5
events criticality analysis (FMECA, RCM, etc.)
Corrective Maintenance techniques including fault 5.18
diagnosis
b) Diagnose the state 4 3 4 2 Principles and methods for maintenance tasks 5.7
of the items in monitoring
question
Non-Destructive Testing (ultrasonic testing, Eddy 5.11
current, radiography, etc.)
Active maintenance techniques 3.2
Competence: to be able to act preventively and/or correctively on the items to maintain
Skills: to be able
...