SIST EN 17649:2022/oprA1:2025

Gas infrastructure - Safety Management System (SMS), Pipeline Integrity Management System (PIMS) and Compressor station integrity management system (CIMS) - Functional requirements

This document specifies requirements on the development and implementation of a Safety Management System (SMS) and a Pipeline Integrity Management System (PIMS). The SMS is applicable for system operators of a gas infrastructure. The PIMS is applicable for system operators of gas infrastructure with a maximum operating pressure (MOP) over 16 bar.
This document refers to all activities and processes related to safety aspects and performed by system operators of a gas infrastructure, including those activities entrusted to contractors. It includes safety-related provisions on operation of the gas infrastructure.
This document is applicable to infrastructure for the conveyance of processed, non-toxic and non-corrosive natural gas according to EN ISO 13686 and gases such as biomethane and hydrogen and to mixtures of these gases with natural gas.
This document covers also gases classified as group H, that are to be transmitted, injected into and from storages, distributed and utilized, as specified in EN 16726. For the requirements and test methods for biomethane at the point of entry into a natural gas network, reference is made to EN 16723-1.
This document can be applied for gas infrastructure conveying gases of the 3rd gas family as classified in EN 437 or for other gases such as carbon dioxide.
Specific requirements for occupational health and safety are excluded from this document. For these, other European and/or international standards, e.g. ISO 45001, apply.
This document specifies common basic principles for gas infrastructure. It is important that users of this document are expected to be aware that more detailed national standards and/or codes of practice exist in the CEN member countries. This document is intended to be applied in association with these national standards and/or codes of practice setting out the above-mentioned basic principles.
In the event of conflicts in terms of more restrictive requirements in national legislation/regulation with the requirements of this document, the national legislation/regulation takes precedence as illustrated in CEN/TR 13737 (all parts).
NOTE CEN/TR 13737 (all parts) contains:
- clarification of relevant legislation/regulations applicable in a country;
- if appropriate, more restrictive national requirements;
- national contact points for the latest information.

Gasinfrastruktur - Sicherheitsmanagementsystem und Rohrleitungsintegritätsmanagementsystem - Funktionale Anforderungen

Infrastructures gazières - Système de management de la sécurité (SMS) et système de management de l’intégrité des canalisations (PIMS) - Exigences fonctionnelles

Infrastruktura za plin - Sistem varnega upravljanja (SMS), sistem celostnega upravljanja plinovodnih sistemov (PIMS) in sistem celostnega upravljanja kompresorskih postaj (CIMS) - Funkcionalne zahteve - Dopolnilo A1

General Information

• Status: Not Published
• Public Enquiry End Date: 02-Jul-2025
• ICS: 75.200 - Petroleum products and natural gas handling equipment
• ICS: 91.140.40 - Gas supply systems
• Technical Committee: DPL - Gas supply
• Current Stage: 4020 - Public enquire (PE) (Adopted Project)
• Start Date: 13-May-2025
• Due Date: 30-Sep-2025
• Mandate: M/526 - [C(2014)3451] Standardisation request to the European standardisation organisations pursuant to Article 10 (1) of Regulation (EU) No 1025/2012 of the European Parliament and of the Council in support of implementation of the EU Strategy on Adaptation to Climate Change [COM(2013) 216 final]
• Ref Project: EN 17649:2022/prA1 - Gas infrastructure - Safety Management System (SMS), Pipeline Integrity Management System (PIMS) and Compressor station integrity management system (CIMS) - Functional requirements

Relations

• Amends: SIST EN 17649:2022 - Gas infrastructure - Safety Management System (SMS) and Pipeline Integrity Managementsystem (PIMS) - Functional requirements
• Effective Date: 03-Jul-2024

Standards Content (Sample)

SLOVENSKI STANDARD
01-junij-2025
Infrastruktura za plin - Sistem varnega upravljanja (SMS), sistem celostnega
upravljanja plinovodnih sistemov (PIMS) in sistem celostnega upravljanja
kompresorskih postaj (CIMS) - Funkcionalne zahteve - Dopolnilo A1
Gas infrastructure - Safety Management System (SMS), Pipeline Integrity Management
System (PIMS) and Compressor station integrity management system (CIMS) -
Functional requirements
Gasinfrastruktur - Sicherheitsmanagementsystem und
Rohrleitungsintegritätsmanagementsystem - Funktionale Anforderungen
Infrastructures gazières - Système de management de la sécurité (SMS) et système de
management de l’intégrité des canalisations (PIMS) - Exigences fonctionnelles
Ta slovenski standard je istoveten z: EN 17649:2022/prA1
ICS:
75.200 Oprema za skladiščenje Petroleum products and
nafte, naftnih proizvodov in natural gas handling
zemeljskega plina equipment
91.140.40 Sistemi za oskrbo s plinom Gas supply systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
EN 17649:2022
NORME EUROPÉENNE
EUROPÄISCHE NORM
prA1
June 2025
ICS
English Version
Gas infrastructure - Safety Management System (SMS),
Pipeline Integrity Management System (PIMS) and
Compressor station integrity management system (CIMS) -
Functional requirements
Infrastructures gazières - Système de management de Gasinfrastruktur - Sicherheitsmanagementsystem und
la sécurité (SMS) et système de management de Rohrleitungsintegritätsmanagementsystem -
l'intégrité des canalisations (PIMS) - Exigences Funktionale Anforderungen
fonctionnelles
This draft amendment is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 234.

This draft amendment A1, if approved, will modify the European Standard EN 17649:2022. If this draft becomes an amendment,
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of
this amendment into the relevant national standard without any alteration.

This draft amendment was established by CEN 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.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

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 17649:2022/prA1:2025 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Modification of the title . 4
2 Modification to the introduction . 4
3 Modification to Clause 1 . 4
4 Modification to Clause 2 . 4
5 Modification to Clause 3 . 4
6 Modification to 6.3.1 . 4
7 Modification to 8.1.1 . 4
8 Modification to 8.1.5.1. 5
9 Modification to 8.1.6 . 5
10 Modification to 8.1.8 . 5
11 Addition of Clause 11 . 5

European foreword
This document (EN17649:2022/prA1:2025) has been prepared by Technical Committee CEN/TC 234
“Gas Infrastructure”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document has been prepared under a standardization request addressed to CEN by the European
Commission. The Standing Committee of the EFTA States subsequently approves these requests for its
Member States.
1 Modification of the title
Replace the title by:
“Gas infrastructure — Safety Management System (SMS), Pipeline Integrity Management System (PIMS)
and Compressor station integrity management system (CIMS) — Functional requirements”
2 Modification to the introduction
Replace the last sentence by:
“The technical contents are in line with EN 12007 (all parts), EN 1594 and EN 12583”
3 Modification to Clause 1
Replace the first sentence by:
“This document specifies requirements on the development and implementation of a Safety Management
System (SMS), a Pipeline Integrity Management System (PIMS) and a Compressor station integrity
management system (CIMS).”
4 Modification to Clause 2
Add the following normative reference:
“EN 12583, Gas Infrastructure - Compressor stations - Functional requirements ‘”
5 Modification to Clause 3
Add the following term and definition:
“3.14
compressor station integrity management system
CIMS
set of appropriate activities and practices by which a transmission system operator preserves the
integrity of the compressor station to ensure safe and reliable compression of gas”
6 Modification to 6.3.1
Replace the last sentence by:
“Depending on the changes to the composition of the gas introduced into a natural gas infrastructure, the
SO shall conduct a revision of the SMS and, if applicable, the PIMS and CIMS to assess all safety aspects
affected by the changes.”
7 Modification to 8.1.1
Replace the second sentence by:
“The SO shall apply the requirements of EN 12007 (all parts), EN 1594, EN 12583 and other European
standards relevant to gas infrastructures.”
8 Modification to 8.1.5.1
Replace the third sentence by:
“Maintenance activities shall be carried out based on EN 1594, EN 12007 (all parts), EN 12186, EN 12583
and national standards and codes of practice. “
9 Modification to 8.1.6
Replace first sentence by:
“When a gas infrastructure section is taken permanently out of service, the decommissioning shall be
executed according to applicable standards, e.g. EN 1594, EN 12007, EN 12327 and EN 12583.”
10 Modification to 8.1.8
Replace last sentence by:
“For emergency plans reference shall be made to EN 12007-1, EN 1594 and EN 12583”
11 Addition of Clause 11
Add the following new clause:
“
11 Integrity Management System for Compressor Stations (CIMS)
11.1 General requirements
11.1.1 General
The SO who operates compressor stations shall have a designated Compressor Station Integrity
Management System (CIMS) as a part of the SMS, also refer to Figure 1 in section 10.1. When
implementing the CIMS, the SO shall consider all other elements in Clause 4 to Clause 9 complementary
to the specific elements specified in this clause.
The first objective of the CIMS is to preserve the integrity of the assets through the management of the
relevant safety aspects by means of a systematic approach. By this, CIMS contributes to the safety and
availability of the gas installations on the station. The second objective of the CIMS is to demonstrate the
integrity of the assets during their operational life to the relevant stakeholders.
CIMS starts with the commissioning of a compressor station. The main activities of the CIMS shall be
covered by procedures. The SO shall conduct the following activities as part of the systematic approach
of the CIMS:
a. Identification of the safety aspects for compressor station integrity (11.2);
b. Preparation of integrity programmes (11.3);
c. Application of integrity programmes (11.4);
d. Assessment of integrity (11.5);
e. Mitigation (11.6).
Other general requirements are identical to those for pipelines, refer to section 10.1.
11.1.2 Approach
The approach in this clause is a general integrity management approach also applicable for pipelines. At
a later stage of development, this clause will refer to the PIMS section.
The approach for ensuring asset integrity on compressor stations consists in the following:
— planning, design, construction and operation follow the technical rules in accordance with the state
of the art;
— quality management procedures at the time of construction;
— operational supervision and maintenance;
— periodical assessment of the asset condition;
— manage the emissions such as NO and methane;
x
— minimizing the environmental impact.
The design and construction of the plants follows the relevant technical standards. Active supervision of
the construction before commissioning ensures that these standards are followed without exception and
that the required quality is provided.
Operation and maintenance also follow European and national technical codes and internal rules and
standards; they comprise all activities with a short-term outlook. The results should be documented in
the operator’s documentation systems such as Electronic Document Management system, Plant
Maintenance System etc. Examples of periodical activities (functional checks and inspections) in the
framework of operation and maintenance are:
— pressure relief valve / emergency shut down valves: function and adjustment;
— functional checks of station protection and Emergency Shut Down (ESD) systems;
— functional checks of fire and gas detections systems;
— determination of NO / CO emissions of drivers/ flue gas emissions / composition;
x
— methane emissions: Leak Detection And Repair (LDAR)/ leak checks;
— isolation valve tightness and operability;
— pressure vessel condition incl. repeated pressure testing (e.g. filters, separators);
— piping condition;
— pressure reduction and metering installations;
— emergency / secondary power unit tests;
— IT Security.
In contrast to the general operation and maintenance, a repeated condition assessment addresses long
term changes in asset condition. Examples of long-term condition assessments are:
— major inspections of machines;
— Inspection of compressor station piping.
The SO shall ensure that all relevant safety aspects are identified and appropriately addressed.
By following the relevant technical codes in the design/constructions phase of an asset, and by following
suitable procedures in operation and maintenance, it may generally be assumed that the integrity of the
asset is provided. However, depending on e.g. year of construction, current condition, operator
experience or the existence of special safety aspects, it is required to assess the integrity repeatedly by
determining the asset condition through a direct or an indirect measurement (an inspection) or the
acquisition of relevant data. The assessment ensures the achievement of the objectives in section 11.1.1.
The integrity assessment shall be in accordance with European and national standards (e.g. EN 12583)
and otherwise in accordance with the state of the art.
11.1.3 Treating characteristic asset types
11.1.3.1 General
Compressor stations generally consist of different assets or components classified according to its main
functions. These are referred to as “characteristic asset types”. The SO may opt to set up individual
integrity assessment procedures for each characteristic asset type because of the significant differences
in safety aspects, assessment methods and mitigation procedures. It is required to involve specialists in
the individual field of work in order to conduct an integrity assessment.
Typical characteristic asset types under consideration are in accordance with the common engineering
disciplines:
— buildings and structures including associated technical equipment;
— electrical systems and components;
— pressure reduction and metering installations as part of the compressor station;
— machines (drives and compressors);
— compressor station piping including valves;
— process equipment.
11.1.3.2 Buildings and structures
Buildings and structures are the following:
— compressor unit housing, pressure reduction and metering installations, control rooms,
buildings/housing for auxiliary systems such as electrical / SCADA system, pressure- reduction and
metering installations, pressurized containers, heating system etc.;
— structures that are bases for process equipment and machines, steel structu
...