ISO 21512:2024/Amd 1:2026

• Status: Published
• Publication Date: 14-Sep-2026
• ICS: 03.100.40 - Research and development
• Technical Committee: ISO/TC 258 - Project, programme and portfolio management
• Drafting Committee: ISO/TC 258 - Project, programme and portfolio management
• Current Stage: 6060 - International Standard published
• Start Date: 15-Sep-2026
• Due Date: 04-Mar-2027
• Completion Date: 15-Sep-2026

• Amends: ISO 21512:2024 - Project, programme and portfolio management — Earned value management implementation guidance
• Effective Date: 06-Sep-2025

Overview

ISO 21512:2024/Amd 1:2026 is an official amendment to the ISO 21512:2024 standard, providing updated implementation guidance for Earned Value Management (EVM) in project, programme, and portfolio management contexts. Developed by the International Organization for Standardization (ISO), this amendment refines crucial terminology, definitions, and numeric values, ensuring alignment with evolving best practices in EVM. By addressing updated definitions and calculation methods, this amendment helps organizations reliably measure performance and predict project outcomes.

Key Topics

• Updated Definitions: The amendment introduces revised definitions for key EVM terms, such as "budget at completion" (BAC) and "estimate at completion" (EAC), clarifying the scope of costs and forecasted totals for projects, programmes, control accounts, work packages, and activities.
• Cost Variance Clarification: Adjusts the explanation for cost variance, enhancing understanding by focusing on the comparison between actual costs and earned value.
• Numerical Correction: Provides corrected numerical values in performance assessments-this ensures more accurate calculation and reporting of EVM metrics.
• Terminology Precision: Updates specific terms in process descriptions (changing “distance” to “difference”) for consistency in project controls language.
• Alignment with ISO Standards Process: Follows the latest ISO editorial rules, supporting international consistency in EVM practices.

Applications

Implementing the guidance outlined in ISO 21512:2024/Amd 1:2026 supports organizations looking to:

• Monitor Project Performance: Reliable EVM definitions and calculations help project managers track progress against budget and schedule baselines.
• Forecast Project Costs: Clearer definitions for BAC and EAC enable more precise predictions of total expenditure at project completion.
• Manage Programmes and Portfolios: Standardized terminology and updated calculations facilitate consistent reporting and performance evaluation across multiple projects or programmes within an organization.
• Enhance Stakeholder Communication: By utilizing updated definitions and consistent calculations, organizations can communicate project status and risks more effectively to internal and external stakeholders.
• Achieve Compliance: Following the ISO amendment ensures best practice compliance in industries where standardized project management is required, including engineering, construction, information technology, and government projects.

Related Standards

• ISO 21512:2024 - The main standard for earned value management implementation guidance, providing foundational methodology and process structure.
• ISO 21500 - General guidance on project management concepts and processes.
• ISO 21504 - Guidance on portfolio management, useful for organizations managing multiple simultaneous projects.
• ISO 21511 - Covers work breakdown structure for project and programme management, supporting improved planning and tracking.
• ISO/IEC Directives, Part 1 & 2 - Editorial and procedural guidance for all ISO and IEC standards development.

Practical Value

Staying up-to-date with ISO 21512:2024/Amd 1:2026 ensures EVM data is accurate, actionable, and in line with international best practices. This amendment empowers organizations to:

• Reduce risks of miscalculation or misunderstanding due to outdated terminology
• Deliver more predictable project outcomes by using rigorously defined EVM processes
• Satisfy audit, regulatory, and stakeholder demands for transparency and standardized reporting

For further information or implementation support, organizations are encouraged to engage with their national standards body or consult the ISO website.

Earned Value Management (EVM) implementation guidance continues to evolve-adopting current amendments is crucial for successful and compliant project management.

International
Standard
ISO 21512
First edition
Project, programme and portfolio
2024-08
management — Earned value
management implementation
AMENDMENT 1
guidance
2026-09
AMENDMENT 1
Management de projets, programmes et portefeuilles —
Recommandations de mise en oeuvre du management de la
valeur acquise
AMENDEMENT 1
Reference number
ISO 21512:2024/Amd.1:2026(en) © ISO 2026

ISO 21512:2024/Amd.1:2026(en)
© ISO 2026
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: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
ISO 21512:2024/Amd.1:2026(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 document 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 re
...

Norme
internationale
ISO 21512
Première édition
Management de projets,
2024-08
programmes et portefeuilles —
Recommandations de mise en
AMENDEMENT 1
oeuvre du management de la valeur
2026-09
acquise
AMENDEMENT 1
Project, programme and portfolio management — Earned value
management implementation guidance
AMENDMENT 1
Numéro de référence
ISO 21512:2024/Amd.1:2026(fr) © ISO 2026

ISO 21512:2024/Amd.1:2026(fr)
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2026
Tous droits réservés. Sauf prescription différente ou nécessité dans le contexte de sa mise en œuvre, aucune partie de cette
publication ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique,
y compris la photocopie, ou la diffusion sur l’internet ou sur un intranet, sans autorisation écrite préalable. Une autorisation peut
être demandée à l’ISO à l’adresse ci-après ou au comité membre de l’ISO dans le pays du demandeur.
ISO copyright office
Case postale 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Genève
Tél.: [phone]
E-mail: [e-mail]
Web: www.iso.org
Publié en Suisse
ii
ISO 21512:2024/Amd.1:2026(fr)
Avant-propos
L'ISO (Organisation internationale de normalisation) est une fédération mondiale d'organismes nationaux
de normalisation (comités membres de l'ISO). L'élaboration des Normes internationales est en général
confiée aux comités techniques de l'ISO. Chaque comité membre intéressé par une étude a le droit de faire
partie du comité technique créé à cet effet. Les organisations internationales, gouvernementales et non
gouvernementales, en liaison avec l'ISO participent également aux travaux. L'ISO collabore étroitement avec
la Commission électrotechnique internationale (IEC) en ce qui concerne la normalisation électrotechnique.
Les procédures utilisées pour élaborer le présent document et celles destinées à sa mise à jour sont
décrites dans les Directives ISO/IEC, Partie 1. Il convient, en particulier, de prendre note des différents
critères d'approbation requis pour les différents types de documents ISO. Le présent document a
été rédigé conformément aux règles de rédaction données dans les Directives ISO/IEC, Partie 2 (voir
www.iso.org/directives).
L’ISO attire l’attention sur le fait que la mise en application du présent document peut entraîner l’utilisation
d’un ou de plusieurs brevets. L’ISO ne prend pas position quant à la preuve, à la validité et à l’applicabilité de
tout droit de brevet revendiqué à cet égard. À la date de publication du présent document, l’ISO n'avait pas
reçu notification qu’un ou plusieurs brevets pouvaient être nécessaires à sa mise en application. Toutefois,
il y a lieu d’avertir les respons
...