ACMP Standard second edition: what changed for CCMP candidates

What changed between the 2014 and the 2025 edition of the Standard?

The ACMP describes the second edition as an adaptation: the core principles stay, the Standard remains method-neutral, and the updates aim at usability and clarity, with extra weight on change readiness and on flexibility in the order of activities. That is the ACMP's own summary, in the foreword of the second edition (2025).

This site follows Leanova Academy, an official ACMP® QEP™, and many readers arrive here with a question that sounds simple: "I studied the old Standard, what do I need to relearn?" Before giving a practical answer, one limit must be stated. The ACMP does not publish, on the pages read for this article, a line-by-line list of differences between the two editions. Any claim about a specific 2014 passage that could not be confirmed on an ACMP page or another reliable source has been left out, and this guide does not guess at a change list.

Why did the ACMP update the Standard?

Because the profession moved on and the ACMP wanted the Standard to reflect how change is practised now. According to the ACMP Standard for Change Management, second edition (2025), the update rests on the most recent Job Task Analysis, a comprehensive global survey of how change management is performed today.

The same survey is the base of the updated test specifications for the CCMP exam, so the Standard and the exam were adapted together. The first edition dates from September 2014, as the ACMP's page on the Standard states, and the second edition was published on 26 August 2025. Per the foreword, the 2014 edition brought together more than 1,100 change professionals from 57 countries.

The adaptation was a volunteer effort. Over 100 experienced CCMPs and QEPs gave more than 1,500 hours, and the foreword is signed by the ACMP board president at the time of publication, Rich Batchelor. A Job Task Analysis, a volunteer task force and independent review are the ingredients of a professional standard that tracks practice rather than theory, which is a good reason to read the new edition even if you know the old one well.

What stayed the same?

The architecture: five process groups, a neutral stance towards methodologies, applicability to any organisation and any size of change, and the role of the Standard as the foundation of both the CCMP and the MCMP.

An earlier, undated ACMP information brochure presents the Standard as five areas: evaluating change impact and organizational readiness, formulating the change management strategy, developing change management plans, executing them, and closing the change management effort. The second edition titles its groups 5.1 to 5.5 in the imperative form: Evaluate Change Impact and Organizational Readiness, Formulate the Change Management Strategy, Develop the Change Management Plan, Execute the Change Management Plan and Close the Change Management Effort. Between the two sources the five-group frame is therefore constant, with small differences in wording.

The second edition also keeps its statement that the Standard does not mandate particular activities: its language describes generally accepted practice, so processes are generally used but not required. For a first reading of the structure, see the pivot guide to the second edition.

What does the second edition put forward?

Two themes, taken from the foreword: change readiness, and flexibility in sequencing activities. The text of the second edition shows where each theme lives, so a reader can check them directly.

Theme named in the foreword	Where it appears in the second edition
Change readiness	Concept 4.8, the assessment of organisational readiness (5.1.13), the readiness strategy (5.2.5) and the readiness plan (5.3.1.5)
Flexibility in sequencing	Section 4.3 says its activity lists are lists, not a recommended sequence; section 5 says processes are iterative, sometimes simultaneous and repeatable; Appendix B says its arrows are not a sequence
Usability and clarity	Examples of usability aids in the text: input and output tables for each process, and a mapping of processes to nine subject groups in Appendix B

The table lists where these ideas sit in the 2025 text. It does not claim that every item was absent in 2014, because the older text was not compared line by line. The sensible use of the table is as a reading guide: if your knowledge comes from the first edition, read these places first and look for anything unfamiliar.

Readiness deserves a note of its own. The Standard defines it as the preparedness of an organisation, or parts of it, to accept, handle and integrate an impending change. Process 5.1.13 treats market factors, capacity and saturation as elements of a readiness assessment, while capacity for change also has its own process (5.1.12). A candidate should therefore keep "ready", "able" and "overloaded" apart and know how they connect.

What does the change mean for a CCMP candidate?

The exam now follows the second edition. The ACMP's announcement states that the first edition applied to CCMP exams taken on or before 30 March 2026, that there were no exams on 31 March 2026, and that the second edition applies to exams taken on or after 1 April 2026.

Three practical consequences follow for someone preparing today:

1. Check the edition of your study material. Notes, flashcards or books written before April 2026 may follow the first edition. Look at the cover or the publication date, and compare them with the ACMP's text.
2. Study the readiness chain and the freedom of order. Because both are emphasised by the ACMP, expect them to matter in situational questions. The ACMP has not published exam weightings on its Standard pages, so no percentage can be quoted for any topic.
3. Keep your 21 hours aligned with the current Standard. The CCMP application asks for 21 hours of change management education aligned with the Standard within the last seven years, as the ACMP states in its eligibility rules; the 21-hour requirement explained covers what counts. If your course ended before April 2026, check with the provider how it handled the new edition, and keep the outline. Leanova Academy's 21-hour self-paced CCMP course is one QEP option to compare.

The exam format itself is a separate subject. The ACMP states that the exam has 150 multiple-choice questions in three hours (ACMP exam preparation page). Leanova's blog explains the exam format and preparation. For where each process lands in a study plan, see the guide to the subject groups of Appendix B.

What does it change for a practitioner?

Mostly your habits of reading, not your toolbox. If you use the Standard on projects, the second edition invites you to document readiness explicitly, to choose the order of processes on purpose and to explain why you skipped some.

A fictional example: a change lead at a logistics company used a checklist based on the first edition and always started with a stakeholder map. On a new warehouse system, the project plan was already in motion, so she began with the change definition and an early readiness check of the night shift, then returned to the stakeholder analysis once the pilot had started. She recorded the reasons in her change plan, which is exactly the use the second edition describes: processes chosen, ordered and repeated according to the situation.

Two other points matter in practice. First, the integration of change management with project management is described in 4.4 and in process 5.3.2, so the change plan and the project plan should be reviewed together. Second, because the ACMP does not certify organisations against the Standard, claiming "compliance with the second edition" in a proposal is not something the ACMP can confirm; say instead that your approach is aligned with it, and cite the sections.

Each group has its own guide on this site, starting with the complete list of 33 processes and their outputs, a handy checklist for comparing the structure of the new text with your own notes.

Where can you verify these points?

On the ACMP's own pages. The ACMP Standard page is the authority, at acmpglobal.org/page/ACMPStandard, and the ACMP says the Standard is its exclusive property, so the text itself is obtained from the ACMP.

The ACMP exam pages state the format and the eligibility rules. Edition dates come from the ACMP's announcement of the new edition, dated 27 August 2025 in the republished version used here. If a date or a rule matters for your application, confirm it on the ACMP site on the day you apply, since rules can change.

Frequently asked questions

When did the CCMP exam switch to the second edition?

For exams taken on or after 1 April 2026. The first edition applied to exams up to and including 30 March 2026, and there were no exams on 31 March 2026, according to the ACMP's announcement.

Is there an official list of differences between the two editions?

None was found on the ACMP pages read for this article. The foreword gives the reasons and the emphasis of the update, and the full text of both editions is the only complete basis for a comparison.

Did the number of process groups change?

The five-group frame is the same in the sources checked. The earlier ACMP brochure and the second edition both present five groups, with differences of wording in their titles.

Do I need to relearn everything if I studied the first edition?

No. The foreword states that the core principles remain unchanged. Reread the second edition once, focus on readiness and on the freedom to choose and repeat processes, and check your notes against the current exam rules.

Where does the Standard come from and who wrote the update?

The ACMP publishes it. Per the foreword, the update was done by more than 100 experienced CCMPs and QEPs, who gave over 1,500 volunteer hours, using the latest Job Task Analysis.

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