ISO 22552:2025
(Main)Space systems — Manufacturing readiness review
Space systems — Manufacturing readiness review
This document provides general requirements of manufacturing readiness review (MRR) for deliverable space products, including initiation process of MRR, implementation process of MRR and activities after MRR. This document is applicable to the MRR of deliverable space products.
Systèmes spatiaux — Revue d’aptitude à la fabrication
General Information
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International
Standard
ISO 22552
First edition
Space systems — Manufacturing
2025-08
readiness review
Systèmes spatiaux — Revue d’aptitude à la fabrication
Reference number
© ISO 2025
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Management requirements for MRR . 2
4.1 Purpose of MRR .2
4.2 General organization of MRR.2
4.3 Typical programme milestone of MRR .2
5 General process requirements of MRR . 2
6 Process for MRR . 2
6.1 General overview .2
6.2 Step 1: initiation process of MRR .3
6.2.1 Document preparation .3
6.2.2 Review condition confirmation.3
6.3 Step 2: implementation process of MRR .3
6.3.1 Organization of MRR.3
6.3.2 Document review .4
6.3.3 On-site review .4
6.3.4 Meeting review .6
6.4 Step 3: activities after MRR .6
Annex A (informative) MRR report . 7
Annex B (informative) Manufacturing plan . 8
Bibliography . 9
iii
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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO’s adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 20, Aircraft and space vehicles, Subcommittee
SC 14, Space systems and operations.
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.
iv
Introduction
The manufacturing readiness review (MRR) is a formal examination to determine if the design (of product
definition and requirements, manufacturing documentation, processes, personnel, materials and parts,
facilities, etc.) is ready for production. The supplier performs MRR, prior to starting the manufacture of
the product, to review the consistency between manufacturing conditions and manufacturing baseline,
to ensure on time delivery of the product with quality and quantity guaranteed, and to help identify and
mitigate the risks in the manufacturing procedure.
This document provides general requirements for organizing and performing the MRR for deliverable space
products, which include initiation process of MRR, content of MRR, implementation for MRR, and activities
after MRR.
This document provides a common set of requirements for MRR to encourage international space cooperation
for quality control and to optimize the costs of planning and performing MRR reviews.
v
International Standard ISO 22552:2025(en)
Space systems — Manufacturing readiness review
1 Scope
This document provides general requirements of manufacturing readiness review (MRR) for deliverable
space products, including initiation process of MRR, implementation process of MRR and activities after MRR.
This document is applicable to the MRR of deliverable space products.
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.
ISO 10795, Space systems — Programme management and quality — Vocabulary
ISO 14300-1, Space systems — Programme management — Part 1: Structuring of a project
ISO 17666, Space systems — Programme management — Risk management
ISO 21349, Space systems — Project reviews
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 10795 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/
3.1.1
manufacturing readiness review
MRR
production readiness review
formal examination to determine if the design (of product definition and requirements, manufacturing
documentation, processes, personnel, materials and parts, facilities, etc.) is ready for production
Note 1 to entry: The typical programme milestone (phase ending) is a detailed design stage during or at the end of the
development phase. The typical milestone criterion is the completion of the production plan.
3.1.2
manufacturing baseline
series of confirmed documents used to describe and specify the manufacturing status of deliverable space
products, including relevant requirements of personnel, equipment and facilities, environment, material,
method, measurement in manufacturing process
Note 1 to entry: The manufacturing baseline mainly includes design documents, drawings, process documents and
product assurance documents, etc.
4 Management requirements for MRR
4.1 Purpose of MRR
The purpose of MRR is
a) to determine if the design of product definition and requirements, manufacturing documentation,
processes, personnel, materials and parts, facilities, etc., is ready for production, and
b) to ensure that execution of manufacturing meets the requirements of customer and project.
4.2 General organization of MRR
The general requirements related to the reviews organization as defined in ISO 14300-1 and ISO 21349
shall apply.
The supplier shall perform the MRR, prior to starting the manufacture of deliverable space products, to
review the consistency between manufacturing conditions and manufacturing baseline, to ensure on time
delivery of the product with quality and quantity guaranteed, and to help identify and mitigate the risks in
manufacturing procedure.
The MRR applies both for qualification models and flight models.
The MRR can be repeated during the manufacturing phase for each repetitive item and first manufactured
item. In case of recurring manufacturing during the production phase, the supplier shall define the
periodicity of MRRs. If needed, an MRR can cover a group or batch or recurring products.
4.3 Typical programme milestone of MRR
The typical programme milestone (phase ending) and its relation to space project phases shall be a detailed
design stage during or at the end of the development phase, as defined in ISO 14300-1, ISO 21349 and
Clause 6 of this document.
5 General process requirements of MRR
The general process requirements of the MRR are as follows.
a) Production baseline shall be established before the MRR.
b) After the MRR is passed, the supplier can start the manufacturing of the deliverable space products.
c) The review process can be simplified or enhanced according to the complexity, maturity and importance
of the product.
d) For those criteria that have not been achieved, the evaluation shall include an estimate of the risk to the
project, as defined in ISO 17666.
6 Process for MRR
6.1 General overview
The process of the MRR shall comprise 3 steps, including initiation process, implementation process and
activities after review, see Figure 1.
Figure 1 — Process of manufacturing readiness review
6.2 Step 1: initiation process of MRR
6.2.1 Document preparation
Before starting the MRR, the supplier shall prepare documents used for review, generally including:
a) MRR report (see Annex A);
b) manufacturing plan (see Annex B);
c) manufacturing baseline documents;
d) other reference documents available for MRR.
6.2.2 Review condition confirmation
Before starting the MRR, the following activities shall be finished.
a) Product qualificat
...
FINAL DRAFT
International
Standard
ISO/FDIS 22552
ISO/TC 20/SC 14
Space systems — Manufacturing
Secretariat: ANSI
readiness review
Voting begins on:
Systèmes spatiaux — Revue d’aptitude à la fabrication 2025-05-14
Voting terminates on:
2025-07-09
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 SUPPOR TING DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
Reference number
ISO/FDIS 22552:2025(en) © ISO 2025
FINAL DRAFT
ISO/FDIS 22552:2025(en)
International
Standard
ISO/FDIS 22552
ISO/TC 20/SC 14
Space systems — Manufacturing
Secretariat: ANSI
readiness review
Voting begins on:
Systèmes spatiaux — Revue d’aptitude à la fabrication
Voting terminates on:
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 SUPPOR TING DOCUMENTATION.
© ISO 2025
IN ADDITION TO THEIR EVALUATION AS
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
or ISO’s member body in the country of the requester.
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland Reference number
ISO/FDIS 22552:2025(en) © ISO 2025
ii
ISO/FDIS 22552:2025(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Management requirements for MRR . 2
4.1 Purpose of MRR .2
4.2 General organization of MRR.2
4.3 Typical programme milestone of MRR .2
5 General process requirements of MRR . 2
6 Process for MRR . 2
6.1 General overview .2
6.2 Step 1: initiation process of MRR .3
6.2.1 Document preparation .3
6.2.2 Review condition confirmation.3
6.3 Step 2: implementation process of MRR .3
6.3.1 Organization of MRR.3
6.3.2 Document review .4
6.3.3 On-site review .4
6.3.4 Meeting review .6
6.4 Step 3: activities after MRR .6
Annex A (informative) MRR report . 7
Annex B (informative) Manufacturing plan . 8
Bibliography . 9
iii
ISO/FDIS 22552:2025(en)
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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO’s adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 20, Aircraft and space vehicles, Subcommittee
SC 14, Space systems and operations.
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.
iv
ISO/FDIS 22552:2025(en)
Introduction
The manufacturing readiness review (MRR) is a formal examination to determine if the design (of product
definition and requirements, manufacturing documentation, processes, personnel, materials and parts,
facilities, etc.) is ready for production. The supplier performs MRR, prior to starting the manufacture of
the product, to review the consistency between manufacturing conditions and manufacturing baseline,
to ensure on time delivery of the product with quality and quantity guaranteed, and to help identify and
mitigate the risks in the manufacturing procedure.
This document provides general requirements for organizing and performing the MRR for deliverable space
products, which include initiation process of MRR, content of MRR, implementation for MRR, and activities
after MRR.
This document provides a common set of requirements for MRR to encourage international space cooperation
for quality control and to optimize the costs of planning and performing MRR reviews.
v
FINAL DRAFT International Standard ISO/FDIS 22552:2025(en)
Space systems — Manufacturing readiness review
1 Scope
This document provides general requirements of manufacturing readiness review (MRR) for deliverable
space products, including initiation process of MRR, implementation process of MRR and activities after MRR.
This document is applicable to the MRR of deliverable space products.
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.
ISO 10795, Space systems — Programme management and quality — Vocabulary
ISO 14300-1, Space systems — Programme management — Part 1: Structuring of a project
ISO 17666, Space systems — Programme management — Risk management
ISO 21349, Space systems — Project reviews
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 10795 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/
3.1.1
manufacturing readiness review
MRR
production readiness review
formal examination to determine if the design (of product definition and requirements, manufacturing
documentation, processes, personnel, materials and parts, facilities, etc.) is ready for production
Note 1 to entry: The typical programme milestone (phase ending) is a detailed design stage during or at the end of the
development phase. The typical milestone criterion is the completion of the production plan.
3.1.2
manufacturing baseline
series of confirmed documents used to describe and specify the manufacturing status of deliverable space
products, including relevant requirements of personnel, equipment and facilities, environment, material,
method, measurement in manufacturing process
Note 1 to entry: The manufacturing baseline mainly includes design documents, drawings, process documents and
product assurance documents, etc.
ISO/FDIS 22552:2025(en)
4 Management requirements for MRR
4.1 Purpose of MRR
The purpose of MRR is
a) to determine if the design of product definition and requirements, manufacturing documentation,
processes, personnel, materials and parts, facilities, etc., is ready for production, and
b) to ensure that execution of manufacturing meets the requirements of customer and project.
4.2 General organization of MRR
The general requirements related to the reviews organization as defined in ISO 14300-1 and ISO 21349
shall apply.
The supplier shall perform the MRR, prior to starting the manufacture of deliverable space products, to
review the consistency between manufacturing conditions and manufacturing baseline, to ensure on time
delivery of the product with quality and quantity guaranteed, and to help identify and mitigate the risks in
manufacturing procedure.
The MRR applies both for qualification models and flight models.
The MRR can be repeated during the manufacturing phase for each repetitive item and first manufactured
item. In case of recurring manufacturing during the production phase, the supplier shall define the
periodicity of MRRs. If needed, an MRR can cover a group or batch or recurring products.
4.3 Typical programme milestone of MRR
The typical programme milestone (phase ending) and its relation to space project phases shall be a detailed
design stage during or at the end of the development phase, as define
...
ISO/FDIS 22552:2024(en)
First Edition
ISO/TC 20/SC 14
Secretariat: ANSI
Date: 2025-03-2704-29
ISO/TC 20/SC 14/WG 5
Space systems — Manufacturing readiness review
Systèmes spatiaux — Revue d’aptitude à la fabrication
Copyright notice
ThisFDIS stage
ISO/FDIS 22552:20242025(en)
© ISO document is a working draft2025
All rights reserved. Unless otherwise specified, or committee draft and is copyright-protected by ISO. While required in
the reproductioncontext of working drafts or committee drafts in any form for use by participants in the ISO standards
development process is permitted without prior permission from ISO, neither its implementation, no part of this
document nor any extract from itpublication may be reproduced, stored or utilized otherwise in any form or transmitted
in any form for any other purposeby any means, electronic or mechanical, including photocopying, or posting on the
internet or an intranet, without prior written permission from ISO. Permission can be requested from either ISO at the
address below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: + 41 22 749 01 11
E-mail: copyright@iso.org
Website: www.iso.orgRequests for permission to reproduce this document for the purpose of selling it should be
addressed as shown below or to ISO's member body in the country of the requester:
Reproduction for sales purposes may be subject to royalty payments or a licensing agreement.
Violators may be prosecuted.
Published in Switzerland
iii
ISO/DISFDIS 22552:2024(E2025(en)
Contents Page
Foreword . v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Management requirements for MRR . 2
4.1 Purpose of MRR . 2
4.2 General organization of MRR . 2
4.3 Typical programme milestone of MRR . 2
5 General process requirements of MRR . 2
6 Process for MRR . 2
6.1 General overview . 2
6.2 Step 1: initiation process of MRR . 3
6.3 Step 2: implementation process of MRR . 4
6.4 Step 3: activities after MRR . 6
Annex A (informative) MRR report . 8
Annex B (informative) Manufacturing plan . 9
Bibliography . 10
iv
ISO/FDIS 22552:20242025(en)
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 documentdocuments 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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent rights
in respect thereof. As of the date of publication of this document, ISO had not received notice of (a) patent(s)
which may be required to implement this document. However, implementers are cautioned that this may not
represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO'sISO’s adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This first edition document was prepared by Technical Committee ISO/TC 20, Aircraft and space vehicles,
Subcommittee SC 14, Space systems and operations.
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
ISO/DISFDIS 22552:2024(E2025(en)
Introduction
The manufacturing readiness review (MRR) is a formal examination to determine if the design (of product
definition and requirements, manufacturing documentation, processes, personnel, materials and parts,
facilities, etc.) is ready for production. The supplier performs MRR, prior to starting the manufacture of the
product, to review the consistency between manufacturing conditions and manufacturing baseline, to ensure
on time delivery of the product with quality and quantity guaranteed, and to help identify and mitigate the
risks in the manufacturing procedure.
This document provides general requirements for organizing and performing the MRR for deliverable space
products, which include initiation process of MRR, content of MRR, implementation for MRR, and activities
after MRR.
This document provides a common set of requirements for MRR to encourage international space cooperation
for quality control and to optimize the costs of planning and performing MRR reviews.
vi
Final DRAFT International Standard ISO/FDIS 22552:2024(en)
Space systems — Manufacturing readiness review
1 Scope
This document provides general requirements of manufacturing readiness review (MRR) for deliverable space
products, including initiation process of MRR, implementation process of MRR and activities after MRR.
This document is applicable to the MRR of deliverable space products. .
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.
ISO 10795, Space systems — Programme management and quality — Vocabulary
ISO 14300--1, Space systems — Programme management — Part 1: Structuring of a project
ISO 17666, Space systems — Programme management — Risk management
ISO 21349, Space systems — Project reviews
3 Terms and definitions
For the purposepurposes of this document, the terms and definitions given in ISO 10795 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/.
3.1.1 3.1.1
manufacturing readiness review
MRR
production readiness review
formal examination to determine if the design (of product definition and requirements, manufacturing
documentation, processes, personnel, materials and parts, facilities, etc.) is ready for production.
Note 1 to entry: The typical programme milestone (phase ending) is a detailed design stage during or at the end of the
development phase. The typical milestone criterion is the completion of the production plan.
3.1.2 3.1.2
manufacturing baseline
series of confirmed documents used to describe and specify the manufacturing status of deliverable space
products, including relevant requirements of personnel, equipment and facilities, environment, material,
method, measurement in manufacturing process
ISO/FDIS 22552:2025(en)
Note 1 to entry: The manufacturing baseline mainly includes design documents, drawings, process documents and
product assurance documents, etc.
4 Management requirements for MRR
4.1 Purpose of MRR
The purpose of MRR, which is a formal review examination, is is
a) to determine if the design of product definition and requirements, manufacturing documentation,
processes, personnel, materials and parts, facilities, etc., is ready for production, and
b) to ensure that execution of manufacturing meetmeets the requirements of customer and project.
4.2 General organization of MRR
The general requirements related to the reviews organization as defined in ISO 14300-1 and ISO 21349 shall
apply.
The supplier shall perform the MRR, prior to starting the manufacture of deliverable space products, to review
the consistency between manufacturing conditions and manufacturing baseline, to ensure on time delivery of
the product with quality and quantity guaranteed, and to help identify and mitigate the risks in manufacturing
procedure.
The MRR applies both for qualification models and flight models.
The MRR can be repeated during the manufacturing phase for each repetitive item and first manufactured
item. In case of recurring manufacturing during the production phase, the supplier shall define the periodicity
of MRRs. If needed, aan MRR can cover a group or batch or recurring products.
4.3 Typical programme milestone of MRR
The typical programme milestone (phase ending) and theirits relation to space project phases shall be a
detailed design stage during or at the end of the development phase, as defined in ISO 14300-1, ISO 21349 and
Clause 6Clause 6 of this document.
5 General process requirements of MRR
The general process requirements of the MRR are as follows.
a) a) Production baseline shall be established before the MRR.
b) b) After the MRR is passed, the supplier can start the manufacturing of the deliverable space products.
c) c) The review process can be simplified or enhanced according to the complexity, maturity and
importance of the product.
d) d) For those criteria that have not been achieved, the evaluation shall include an estimate of the risk to
the project, as defined in ISO 17666.
6 Process for MRR
6.1 General overview
The process of the MRR shall comprise 3 steps, including initiation process, implementation process and
activities after review, see Figure 1Figure 1.
ISO/FDIS 22552:20242025(en)
Step 1
Task 1.1: Document
preparation
Initiation
Task 1.2: Review
process of MRR
condition confirmation
Step 2
Task 2.1: Document review
Implementation
Task 2.2: On site review
process of MRR
Task 2.3: Meeting review
Step 3
Task 3.1: revision and
improvement according
Activities
to the comments of
review
after MRR
Figure 1 — Process of manufacturing readiness review
6.2 Step 1: initiation process of MRR
6.2.1 Document preparation
Before starting the MRR, the supplier shall prepare documents used for review, generally including:
a) a) MRR report (see Annex AAnnex A););
b) b) manufacturing plan (see Annex BAnnex B););
c) c) manufacturing baseline documents;
d) d) other reference documents available for MRR.
6.2.2 Review condition confirmation
Before starting the MRR, the following activities shall be finished.
ISO/FDIS 22552:2025(en)
a) a) Product qualification is completed.
b) b) Manufacturing baseline is established.
c) c) MRR Reportreport and manufacturing plan are prepared for review.
6.3 Step 2: implementation process of MRR
6.3.1 Organization of MRR
a) a) The MRR is generally organized by the supplier;, and related stakeholders shall participate.
b) b) The review board chairperson is generally a product assurance expert with relevant manufacturing
experiences. Relevant personnel from the design department, manufacturing department, product
assurance department, material and component procurement department and production condition
assuranc
...
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