ISO 23684:2023
(Main)Road vehicles — Technical personnel dealing with natural gas vehicles (NGVs) — Training and qualification
Road vehicles — Technical personnel dealing with natural gas vehicles (NGVs) — Training and qualification
This document specifies the requirements for the provisions of personnel dealing with the operation on natural gases (NG) fuelled vehicles in order to demonstrate their competence. This document specifies the minimum requirements for training and qualification of personnel according to the level of safety required by the activity.
Véhicules routiers — Personnel technique s'occupant des véhicules au gaz naturel (GNV) — Programmes de formation et de qualification
General Information
Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 23684
First edition
2023-04
Road vehicles — Technical personnel
dealing with natural gas vehicles
(NGVs) — Training and qualification
Véhicules routiers — Personnel technique s'occupant des véhicules au
gaz naturel (GNV) — Programmes de formation et de qualification
Reference number
© ISO 2023
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ii
Contents Page
Foreword .v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Figures involved on NGVs use and operations. 5
4.1 General . 5
4.2 Professionals on workshop . 6
4.2.1 Technical manager of workshop . 6
4.2.2 Operators on workshop. 7
4.3 Professionals on CNG, LNG and L-CNG fuelling station . 7
4.3.1 Technical manager of CNG, LNG and L-CNG fuelling station . 7
4.3.2 Operators of CNG, LNG and L-CNG fuelling station . 7
4.4 Professionals on parking and garages . 7
5 Requirements for figures involved on NGVs use and operation . 8
5.1 Professionals on workshop . 8
5.1.1 Technical manager of workshop facilities (Table 1) . 8
5.1.2 Operators on workshop (Table 2) . 10
5.2 Professionals on CNG, LNG and L-CNG fuelling station .12
5.2.1 Technical manager of CNG, LNG and L-CNG fuelling station .12
5.2.2 Operators of CNG, LNG and L-CNG fuelling station (Table 4) . 14
5.3 Professional on parking.15
6 Training .16
6.1 General . 16
6.2 Training course . 17
6.3 Requirements related to the theoretical-practical professional training courses . 17
6.3.1 Recognized training course . 17
6.3.2 Competence of trainers . 17
6.3.3 Training method . 18
6.3.4 Training bodies . 18
6.3.5 Training location . 18
6.4 General on training for workshop professional . 18
6.4.1 Technical manager of workshop . 18
6.4.2 Main knowledge of the course . 18
6.5 Workshop operator . . 19
6.5.1 Main knowledge of the course . 19
6.6 Technical manager of CNG /LNG / L-CNG fuelling station . 19
6.6.1 Training for technical managers of CNG/LNG/L-CNG fuelling stations .20
6.7 Operator of CNG/LNG/L-CNG fuelling stations . 20
6.7.1 Training for operator of CNG/LNG/L-CNG fuelling stations .20
7 Competence assessment and qualification achievement .20
7.1 Final examination . 21
8 Qualification levels .21
9 Type of qualification .21
10 Authorized qualification body .21
Annex A (normative) E-learning and e-learning requirements .23
Annex B (informative) Topics of the workshop technical manager course .27
Annex C (informative) Training for technical managers of CNG/LNG/L-CNG fuelling stations .29
iii
Bibliography .30
iv
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
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www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 41,
Specific aspects for gaseous fuels.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
v
Introduction
Since the effectiveness of any application on natural gas vehicles (NGVs) depends upon the capabilities
of the persons who perform or are responsible, a procedure has been developed to provide a means
of evaluating and documenting the competence of personnel whose duties require the appropriate
theoretical and practical knowledge of the work they perform, specify, supervise, monitor or evaluate.
When certification of personnel working on NGVs is required in product standards, regulations, codes
or specifications, it is important to certify the personnel in accordance with this document. When
latitude is provided in the criteria within this document, the certification body has the final decision in
determining specific requirements.
When there is no mandatory requirement in national legislation, or in case a member State does not
adopt this document concerning certification of NGV’s personnel, the employers of such personnel take
the steps to decide how to ensure themselves that employees are competent to do the work assignment.
Thus, they may employ people who are already certified or they may apply their own expertise and
under their responsibility ensure themselves that their employee has the necessary competence.
This document gives particular emphasis on:
— the way in which qualifications are expressed;
— application of the principle that “learning outcomes” are crucial instead of the path to allow
transferability between formal, informal and non-formal areas.
This document is mainly directed to:
— workshop personnel,
— vehicle park owner/personnel,
— NGV dealer/owner,
— CNG, LNG and L-CNG fuelling station owner/personnel,
— first responders,
— inspectors,
— training course providers,
— certification bodies,
— original equipment manufacturer (OEM),
— system manufacturer,
— workshop owner/operator,
— CNG and L-CNG fuelling station owner/operator,
— parking and garages owner/operator.
vi
INTERNATIONAL STANDARD ISO 23684:2023(E)
Road vehicles — Technical personnel dealing with natural
gas vehicles (NGVs) — Training and qualification
1 Scope
This document specifies the requirements for the provisions of personnel dealing with the operation on
natural gases (NG) fuelled vehicles in order to demonstrate their competence.
This document specifies the minimum requirements for training and qualification of personnel
according to the level of safety required by the activity.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions 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
ability
capacity and human attribute to perform an activity
[SOURCE: ISO/IEC TS 17027:2014, 2.1, modified — The phrase "and human attribute" was added.]
3.2
authorized qualification body
body, independent of the NGV workshop (3.20), authorized by the certification body (3.4) to prepare and
administer qualification (3.24) examinations
Note 1 to entry: Qualification examination is an activity administered by the certification body or the authorized
qualification body, which assesses the general, specific and practical knowledge and the skill (3.28) of the
candidate.
[SOURCE: ISO 9712:2021, 3.2, modified — "employer" has been changed to "NGV workshop", the word
"qualifications" and the Note 1 to entry were added.]
3.3
certification
third party attestation related to products, processes, systems, or persons
[SOURCE: ISO 7240-1:2014, 2.1.16]
3.4
certification body
third-party conformity assessment body operating certification (3.3) schemes
Note 1 to entry: A certification body can be non-governmental or governmental (with or without regulatory
authority).
Note 2 to entry: A conformity assessment body is a body that performs conformity assessment activities and that
can be the object of accreditation.
Note 3 to entry: A third-party conformity assessment is the conformity assessment activity that is performed by
a person or body that is independent of the person or organization that provides the object, and of user interests
in that object
[SOURCE: ISO/IEC 17065:2012, 3.12, modified — Notes 2 and 3 to entry were added.]
3.5
competence
ability (3.1) to apply knowledge and skills (3.28) to achieve intended results
[SOURCE: ISO/IEC 17024:2012, 3.6]
3.6
competence assessment
formal outcome of an evaluation process (e.g. examination) and validation by means of objective
elements, obtained when a competent body (3.7) states that the learning outcomes of a person meet
given standards and safety regulations
3.7
competent body
person or corporate body, defined by the national or relevant authority, which by combination of
appropriate qualification (3.24), training (3.32), experience and resources is able to make objective
judgments on a subject
[SOURCE: ISO 10691:2004, 3.2]
3.8
competent person
person who has acquired, through training (3.32), qualification (3.24), experience or a combination of
these, the knowledge and skill (3.28) enabling that person to correctly perform the required tasks
[SOURCE: ISO 11525-1:2020, 3.4]
3.9
CNG
compressed natural gas
natural gas (3.18) which has been compressed and stored for use as a vehicle fuel
[SOURCE: ISO 15500-1:2015, 3.2]
3.10
CNG cylinder
any container used for the storage of compressed natural gas (CNG) (3.9) according to the following
classifications:
— CNG-1: an all metal cylinder
— CNG-2: a hoop wrapped cylinder with a load-sharing metal liner and composite reinforcement on
the cylindrical part only
— CNG-3: a fully wrapped cylinder with a load-sharing metal liner and composite reinforcement on
both the cylindrical part and dome ends
— CNG-4: a fully wrapped cylinder with a non-load sharing non-metallic liner and composite
reinforcement on both the cylindrical part and dome ends
3.11
garage
building used for the storage and servicing of NGVs
3.12
formal training
organized and documented program of learning activities designed to impart the knowledge and skills
(3.28) necessary to be qualified to this document
3.13
fuelling station
facility at which vehicle fuels are dispensed
3.14
learning outcome
what a person is expected to know, understand or be able to do at the end of a training programme,
course or module
[SOURCE: ISO/IEC TS 17027:2014, 2.57]
3.15
LNG
liquefied natural gas
natural gas (3.18) which has been liquefied, after processing, for storage or transportation purposes
[SOURCE: ISO 16924:2016, 3.38]
3.16
L-CNG fuelling station
facility at which compressed natural gas (CNG) (3.9) derived from liquefied natural gas (LNG) (3.15) is
dispensed to vehicles
3.17
LNG fuelling station
facility at which liquefied natural gas (3.15) is dispensed to vehicles
3.18
natural gas
NG
complex gaseous mixture of hydrocarbons primarily methane, but which generally includes ethane,
propane and higher hydrocarbons, and some non-combustible gases such as nitrogen and carbon
dioxide
Note 1 to entry: The definition includes renewable natural gas (biogas, biomethane, etc.).
[SOURCE: ISO 14532:2014, 2.1.1.1, modified — Note 1 to entry was replaced.]
3.19
natural gas vehicle
NGV
road vehicle that is powered, either fully or partially, by natural gas (3.18) stored on board vehicle in
liquid or/and gaseous form
3.20
NGV workshop
competent organization, appropriately equipped, that assumes technical responsibility for correct and
safe service, inspection, repair and retrofit on compressed natural gas (CNG) (3.9) or liquefied natural
gas (LNG) (3.15) vehicles
3.21
notified body
independent, accredited body which is entitled by an authorized accrediting body
Note 1 to entry: Upon definition of standards and regulations, the accrediting body may allow a notified body to
provide verification and certification (3.3) services. These services are meant to ensure and assess compliance
to the previously defined standards and regulations, but also to provide an official certification (3.3) mark or a
declaration of conformity.
3.22
operator
person working in an NGV workshop (3.20) or in a compressed natural gas (CNG) (3.9) /LNG/L-CNG
fuelling station (3.16) under the supervision of the competent person (3.8)
3.23
practical examination
assessment of practical skills (3.28), in which the candidate demonstrates familiarity with, and the
ability (3.1) to perform, the test
3.24
qualification
demonstrated education, training (3.32), and work experience, where applicable, required to properly
perform the assigned task as awarded or conferred as described in the document.
Note 1 to entry: Adapted from ISO/IEC 17024:2012, 3.7 and ISO/IEC 19479:2019.
3.25
qualification level
Level 1: the learning outcomes relevant to Level 1 are basic general knowledge
Level 2: the learning outcomes relevant to Level 2 are basic factual knowledge of a field of work or study
Level 3: the learning outcomes relevant to Level 3 are knowledge of facts, principles, processes and
general concepts, in a field of work or study
Level 4: the learning outcomes relevant to Level 4 are factual and theoretical knowledge in broad con-
texts within a field of work or study
Level 5: the learning outcomes relevant to Level 5 are comprehensive, specialized, factual and theoretical
knowledge within a field of work or study and an awareness of the boundaries of that knowledge
3.26
qualified person
individual subjected to qualification process which has passed the qualification (3.24)
3.27
recognized training course
training course which contents (for instance: qualification (3.24) of teachers, training procedures,
documents, examination program and procedures) are assessed against applicable standards and
approved by a certification body (3.4)
3.28
skill
ability (3.1) to perform a task or activity with a specific intended outcome acquired through education,
training (3.32), experience or other means
[SOURCE: ISO/IEC/TS 17027:2014, 2.74]
3.29
skilled organization
entity comprising multiple people, such as an institution or an association, that has a collective goal and
is linked to an external environment and shall be recognized by National Authorities for the specific
field of application
3.30
system manufacturer
company which can assume technical responsibility for the manufacturing or retrofitting of NGV fuel
system and can demonstrate that it possesses the features required and the necessary means to provide
quality assessment and conformity of production of the NGV fuel system
[SOURCE: Reference [14], 2.3, modified — "LPG and CNG" have been replaced by "NGV fuel system".]
3.31
technical manager
qualified person (3.26) that takes responsibility for decisions relating to parking, fuelling, installation,
maintenance and repair of an NGV system
Note 1 to entry: See also EN 13423.
3.32
training
activities designed to facilitate the learning and development of knowledge, skills (3.31), and abilities,
and to improve the performance of specific tasks or roles
[SOURCE: ISO 22398:2013, 3.23]
3.33
training course provider
organization competent to provide training (3.32) by specific courses to persons carrying out operations
or activities on an NGV
3.34
LNG tank
any storage system used for liquefied natural gas (LNG) (3.15)
4 Figures involved on NGVs use and operations
4.1 General
Figures operating on NGVs, as per subject of this document, shall be differentiated by their own
responsibilities.
This shall be defined by the following areas of relevance:
— workshop;
— CNG, LNG and L-CNG fuelling station;
— parking and garage.
Figure 1 is an example of how this document applies.
Figure 1 — Application of this document
4.2 Professionals on workshop
Different qualification levels are defined as follows:
— technical manager;
— operator.
4.2.1 Technical manager of workshop
The technical manager is a competent person who has a high level of skill, knowledge and abilities in
installing and maintaining an NGV system, as defined in 5.1.1. The technical manager is responsible for
the declaration of conformity provided for the activities performed or supervised on NGVs.
The technical manager has technical autonomy and he or she is able to perform independently on or to
supervise and coordinate any operation on NGVs.
Level 4 or higher of qualification shall be appropriate for this person.
4.2.2 Operators on workshop
Operators have a basic level knowledge of vehicles, their main components and NGVs, as defined in 5.1.2.
They act (partially independent) to perform the installation or maintenance work under technical
manager supervision.
Level 2 or higher of qualification shall be appropriate for this person.
4.3 Professionals on CNG, LNG and L-CNG fuelling station
Different qualification levels are defined as follow:
— technical manager;
— operator.
4.3.1 Technical manager of CNG, LNG and L-CNG fuelling station
The technical manager is a competent person who has a high level of skill, knowledge and abilities to
provide proper and safe fuelling of NGVs, as defined in 5.2.1.
The technical manager has technical autonomy and he or she is able to perform independently on or to
supervise and coordinate the fuelling operations.
Level 3 or higher of qualification shall be appropriate for this person.
4.3.2 Operators of CNG, LNG and L-CNG fuelling station
Operators have a basic level knowledge about fuelling operation of NGVs, as defined in 5.2.2.
They act (partially independent) under the mandate of the technical manager of the fuelling station.
Change to requirement (not in note) and make a list of task and corresponding competence level
required.
4.4 Professionals on parking and garages
The person involved in parking or garages activities has the competence defined in 5.3.
Level 2 or higher of qualification shall be appropriate for this person.
5 Requirements for figures involved on NGVs use and operation
5.1 Professionals on workshop
5.1.1 Technical manager of workshop facilities (Table 1)
Table 1 — Skills, abilities and knowledge of technical manager of workshop
Technical/professional skills Abilities Knowledge
Technical manager shall be able to Relevant abilities to every skill Relevant knowledge to every skill
1) Plan and manage independently a) To apply procedures to plan — Elements of planning
the activities of installation and manage installation or
— Processes and work cycles for
and/or maintenance and maintenance of NGVs
car repair garage
repair OEM and/or retrofitted
b) To prepare documentation,
NGVs, providing instructions,
— Time and methods
materials, equipment and
directives and information for
tools for the different
the operatives.
— Warehouse management
activities
procedures (stock management,
warehousing and materials
handling)
— Maintenance, diagnostic
procedures and related tools
2) Apply the applicable regulations a) To identify the applicable — Applicable regulations
to the operations including regulations for NGVs
— Health risks for the specific
safety and take decisions operation and working areas
jobs, methods of prevention
accordingly.
b) To check that operators have and protection (especially the
the necessary competence explosion risk)
and knowledge on applicable
— Specific risks for the
regulations, procedures,
environment and prevention and
contractual terms, risks
protection methods
associated with the task to
be performed
— Natural gas characteristics, safe
use and handling
c) To check the prevention and
protection measures for the
— Technical rules concerning
environment and health and
the approval of vehicles,
safety at work
components and systems
d) To assess suitability
— Operating procedures
and conformity of the
components depending on
vehicles approval
e) To interact with the
responsible body for the
control and testing activities
TTaabblle 1 e 1 ((ccoonnttiinnueuedd))
Technical/professional skills Abilities Knowledge
Technical manager shall be able to Relevant abilities to every skill Relevant knowledge to every skill
3) Keep to and improve the a) To use the specific — Engine and fuel systems
workshop internal procedures documentation correctly principles, mechanisms and
and instructions in accordance (e.g. manuals, diagrams, working parameters
with technical manual of the drawings, procedures, BoM
— Types and characteristics of
OEM or retrofitted NGVs. and specific instructions for
the main components of fuel
the different activities) both
systems
in electronic and in paper
form
— Diagnostics software and
hardware
b) To identify tools and working
sequences to be performed
c) To use appropriate tools for
diagnostics and inspection
4) Supervise and coordinate the a) To provide specific training — Use, maintenance and upgrading
installation, maintenance and to operators in order to give of the diagnosis and equipment
repair of the OEMs and/or the due information to carry
— Use, maintenance and
retrofitted NGVs, ensuring the out the work assigned
calibration of measuring
quality of the product.
b) To control and setup equipment
operative parameters of tools
— Procedures and monitoring
and equipment, ensuring
techniques
their maintenance
— Procedures and techniques for
c) To check the conformity of
failure detection
the components and/or the
whole retrofit system
— Risks related to not conforming
operations on vehicle
d) To identify non-compliance
of products and/or customer
complaints, to analyse
causes, and to propose
corrective actions
5) Check the accurate execution of a) To apply check-up techniques — Technical relevant requirements
the works carried out and the for vehicles provided by OEMs or system
whole system functionality. manufactures
b) To understand data and
datasheets — Technical relevant requirements
coming from applicable
c) To perform leakage test on
regulations and standards
system power supply
TTaabblle 1 e 1 ((ccoonnttiinnueuedd))
Technical/professional skills Abilities Knowledge
Technical manager shall be able to Relevant abilities to every skill Relevant knowledge to every skill
6) Relate to the customer in a) To communicate properly — Effective communication skills
acceptance and delivery of the with customer
— Customer satisfaction
vehicle.
b) To gather information to monitoring
define the state of the vehicle,
the engine and the customer
needs
c) To define the budget for work
d) To define and follow
procedures for customer
identification and for specific
activities carried out on the
vehicle, ensuring systems
and components traceability
and recording (archive
management)
e) To record and explain the
actions and/or any corrective
action performed
5.1.2 Operators on workshop (Table 2)
Operators have a basic level knowledge of vehicles, their main components and NGV fuel system retrofit
for vehicles.
They act (partially independent) to perform the installation or maintaining work under technical
manager supervision.
Table 2 — Skills abilities and knowledge of operators on workshop
Technical/professional skills Abilities Knowledge
Operators shall able to Relevant abilities to every skill Relevant knowledge to every skill
1) Perform, under technical a) To perform the installation, — Process and work cycles of
manager supervision, assigned maintenance and repair tasks NGVs installation, maintenance
tasks to install maintain and for the gas fuel system with and repair
repair OEM and/or retrofitted tools and equipment needed
— Maintenance, diagnostic
NGVs.
b) To apply monitoring techniques procedures and related tools
under technical manager
— Use, maintenance and
supervision
upgrading of diagnostics
c) To check equipment and equipment and tools
tools setup and operating
— Use, maintenance and
parameters, ensuring routine
calibration of measurement
maintenance
tools
d) To check conformity of system
— Monitoring procedures and
components
techniques
e) To fix possible failure based on
— Procedures and techniques for
customer complaints, following
Failure identification
technical manager instructions
— Risks related to incorrect
f) To collaborate with technical
performed work
manager to identify the non-
compliance causes and propose
corrective actions
2) Ensure the proper execution a) To apply check-up techniques — How to use measurement and
of the performed tasks and the for vehicles control tools
system functionality.
b) To understand data and to use — How to use diagnostics tools
datasheets and techniques
c) To perform testing of system — How to conduct test on NGVs
3) Comply with the internal a) To use the documentation — To know engine and
procedures of the workshop (digital format also) like: fuel systems principles,
and the instructions given by manuals, diagrams, drawings, mechanisms and working
the technical documents of procedures, BoM and specific parameters
OEM and/or retrofitted NGVs instructions for the different
— To know types and
system manufacturers. activities
characteristics of the main
b) To apply sequences and tools to components of fuel systems
perform specific tasks
— To know how to use diagnostics
c) To use appropriate diagnostic software and hardware
tools
TTaabblle 2 e 2 ((ccoonnttiinnueuedd))
Technical/professional skills Abilities Knowledge
Operators shall able to Relevant abilities to every skill Relevant knowledge to every skill
4) Comply with the regulations a) To apply regulations and Basic elements of:
and standards to the workshop standards
— regulations and standards
operations (installation,
b) To apply measures of
preventive maintenance and
— specific risks to the health and
prevention and protection for
repair), including work health
safety at work and methods
the environment and health
and safety.
of prevention and protection
and safety at work
(especially the risk of
explosion)
c) To recognize the components
suitability and conformity
— specific risks for the
based on vehicle type-approval
environment and prevention
and protection methods
— natural gas characteristics, use
and handling in safety
— technical rules concerning
the type-approval of vehicles,
components and systems
5.2 Professionals on CNG, LNG and L-CNG fuelling station
Different qualification levels are defined as follow:
— technical manager;
— operator.
5.2.1 Technical manager of CNG, LNG and L-CNG fuelling station
The technical manager is a competent person who has a high level of skill, knowledge and abilities to
provide proper and safe fuelling of NGVs, as defined in 5.2.1.
The technical manager has technical autonomy and he or she is able to perform independently on or to
supervise and coordinate the fuelling operations as specified in Table 3.
Level 3 or higher of qualification shall be appropriate for this person.
Table 3 — Skills, abilities and knowledge of technical manager of CNG, LNG and L-CNG fuelling
station
Technical/professional skills Abilities Knowledge
Technical manager shall be
Relevant abilities to every skill Relevant knowledge to every skill
able to
1) Organize in an appropriate a) To know how to perform — Elements of planning
manner the control the operations for the gas
— Physical and thermal processes
of fuelling operations refuelling system with
and properties of Natural Gas
both in case of attended appropriate tools and
or unattended service equipment
— Methods for fuelling operations
(including written warning
b) To apply monitoring
and information) and the
— Identification of the vehicle
techniques, check and prevent
access of the vehicles at the
volume needs and conditions of
any leakage
fuelling station.
use of the cylinders (e.g. validity
period).
c) To check equipment and
tools setup and operating
— Basic requirements for fuelling
parameters, ensuring routine
connectors
maintenance
— Identification of the vehicle
d) To provide the customer with
volume needs (cylinder capacity)
useful information concerning
and conditions of use of the
different NG refuelling
cylinders (e.g. validity period).
systems (attended and/
or unattended self- service
refuelling)
2) Apply the applicable a) To identify the applicable — Applicable regulations and
regulations and standards to regulations and standard for standards
the operations including the natural gas fuelling station
— Natural gas safe storage
emergency procedures. and working areas
management procedures
b) To check that operators have
— Safety devices of natural gas
the necessary competence
equipment and their management
and knowledge on applicable
procedures
regulations, procedures, risks
associated with the work to be
— Health risks for the specific jobs
performed
with or without gas odorization,
methods of prevention and
c) To identify and/or perform the
protection (especially the risk of
consequent training needs
explosion, fire and high pressure
d) To check the prevention and or cryogenic gas release)
protection measures for the
— Specific Natural Gas risks for the
environment and health and
environment and prevention and
safety at work
protection methods
e) To assess suitability and
— fire prevention, fire-fighting
conformity of the operations
equipment and related procedures
depending on vehicles storage
characteristics and capacity
— Natural gas fuel characteristics,
their use and handling
f) To interact with the competent
authorities for the control and
— Technical rules concerning the
testing activities
metering of the fuel delivered
g) To verify the compliance with
— Environmental issues concerning
the applicable regulations and
waste disposal
standards
TTaabblle 3 e 3 ((ccoonnttiinnueuedd))
Technical/professional skills Abilities Knowledge
Technical manager shall be
Relevant abilities to every skill Relevant knowledge to every skill
able to
3) Maintain the operability of a) To understand, find, and use — Principles, mechanisms and
the fuelling station. documentation (digital format maintenance parameters of
also) like: manuals, diagrams, natural gas equipment (e.g.
drawings, procedures, compressors, vaporizers system,
registers and specific dispensers, pumps)
instructions for the different
— Types and characteristics of gas
maintenance activities
and fire detectors
b) To identify tools and sequence
— Regulatory inspection of fuelling
of works to be performed
station components
within the fuelling station
c) To use appropriate tools for
diagnostics and inspection of
fuelling station equipment
d) To identify the appropriate
actions in order to maintain
the conformity of the
components and of the whole
fuelling system
4) Provide support for safe a) To comply with the — Basic elements for design, and
installation of new facilities. requirements coming from building of fuelling station
regulations and standards
— Risk analysis
b) To provide specific
— Procedures and techniques for
requirements in order to
failure detection
design a new installation
facilities
— Risks related to unsafe connection
with vehicles
c) To provide control setup and
to check operating parameters
— Training methods and competence
of critical equipment, ensuring
assessment
the safety of the complete
fuelling station
— Regulations and standards
d) To check the conformity of the
components and/or the whole
fuelling system
e) To identify non-conformity,
and propose corrective actions
before the start-up
f) To train operatives on the use
of new facilities
g) To suggest technical
improvement to ensure
efficiency in the fuelling
station operation
5.2.2 Operators of CNG, LNG and L-CNG fuelling station (Table 4)
Operators have a basic level knowledge of natural gas fuelling station, its maintenance and operation,
its components, and how to fuel vehicles.
They act (partially independent) under the mandate of the technical manager according to the training
received, in compliance with the applicable environmental and safety regulations.
Table 4 — Skills abilities and knowledge of operators on CNG, LNG and L-CNG fuelling station
Technical/professional skills Abilities Knowledge
Operator shall be able to Relevant abilities to every skill Relevant knowledge to every skill
1) Control the access of the a) To operate the gas fuelling — Applicable procedures
vehicles at the fuelling system with tools and
— Methods for fuelling operations
station including warning, equipment needed
mandatory information and
— Identification of the vehicle volume
b) To check and prevent any
perform fuelling of natural
needs and conditions of use of the
leakage
gas vehicles.
cylinders (e.g. validity period).
c) To check equipment and
— Basic knowledge of fuelling
tools setup and operating
connectors
parameters
2) Comply with the operative a) To respect the applicable — Applicable regulations, standards
and emergency procedures. regulations and standards for and procedures
natural gas operations and
— CNG or LNG safety storage
working areas
procedures
b) To apply the prevention and
— Health risks for the specific
protection measures for the
tasks, prevention and protection
environment and health and
(especially the risk of explosion,
safety at work
fire or high pressure or cryogenic
c) To ensure the conformity gas release)
during the operations
— Waste disposal procedures
depending on vehicles
storage characteristics
— Natural gas fuel characteristics,
their use and handling
— Metering of the fuel delivered
3) Do the maintenance of the a) Use documentation like: — Principles, mechanisms and
fuelling station. manuals, diagrams, maintenance parameters of
drawings, procedures, and natural gas equipment (e.g.
specific instructions for compressors, vaporizers system,
the different maintenance dispensers, pumps)
activities
— Types and characteristics of
b) Use appropriate tools and components of gas and fire
working procedures for detectors
diagnostics and inspection
— fire prevention and procedures of
c) Maintain the conformity the fire-fighting
of the components and the
— How to conduct inspection of
whole fuelling system
natural gas components
5.3 Professional on parking
The technical manager has a good level knowledge of the fuel and safety issues concerned with parking
areas (underground or not), for LD, MD, HD vehicles (see Table 5).
Table 5 — Skills abilities and knowledge of technical manager on natural gas vehicles park
Technical/professional skills Abilities Knowledge
Technical manager shall be
Relevant abilities to every skill Relevant knowledge to every skill
able to
1) Organize the control and the a) To know how to drive and/ — Elements of planning
access of the vehicles inside or park the vehicle inside the
— NGVs and safety issues concerned
the park/garage, including volume of the confined area
with natural gas components
warning and mandatory
b) To apply monitoring
information.
techniques, check and prevent
any fire
c) To check the compliance of
gas, smoke and heat detectors
d) To know the
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