If you've been reading about the ICF changes coming over the next year, you've probably run into MSR, BARS, MCS, and PCC Markers, sometimes in the same paragraph, sometimes used like they're interchangeable. They're not. Two of them describe what gets assessed. One describes how it gets scored. One describes who's qualified to do the scoring. Here's each one, sourced directly from ICF, not paraphrased from a forum thread.
MSR: Minimum Skills Requirements
MSRs are ICF's documents describing what coaching competence looks like at each credential level, ACC, PCC, and MCC each have their own. Per ICF's own page, they "outline the minimum skill level needed to demonstrate competence at each credential level, while also helping you understand which non-coaching behaviors could hinder your performance."
Updated versions took effect January 1, 2026, for ACC and MCC. Applications submitted from that date forward are evaluated against the new documents; anything submitted on or before December 31, 2025, used the prior version. PCC's assessment process itself didn't change in this update, though ICF released refreshed MSR documentation across all three levels around the same time.
Read the actual document and it's not a numeric checklist. The MCC version, for example, walks through each of the 8 Core Competencies and lists "Behaviors Consistent With ICF Standards" next to "Behaviors Inconsistent With ICF Standards," descriptive, not scored on a point scale.
BARS: the scoring method for ACC and MCC
BARS stands for Behaviorally Anchored Rating Scale, and it's the name ICF gives to how ACC and MCC recordings get assessed against the MSR. It's official ICF language, not a coach-community nickname: ICF's own announcement of the January 2026 changes says "training for the new ACC and MCC BARS will be available in November and December" for mentor coaches, educators, and assessors.
What it isn't: I couldn't confirm a specific published point scale from ICF's own current documents, and I'm not going to repeat a number I can't source directly to coachingfederation.org. What the actual MCC document shows is an assessor comparing your recording against the consistent-versus-inconsistent behavior lists per competency, not a single overall memorized number to hit.
BARS applies to ACC and MCC. It does not apply to PCC.
PCC Markers: the older, still-current PCC system
PCC has its own, separate assessment tool that predates this round of changes and wasn't touched by it: the PCC Markers, most recently revised November 2020. ICF describes them plainly: "Assessment markers are the indicators that an assessor is trained to listen for to determine which ICF Core Competencies are in evidence in a recorded coaching conversation, and to what extent." Each competency has a numbered list of markers (3.1, 4.3, 7.5, and so on), and a minimum number of markers has to show up in your recording to pass that competency.
So PCC and MCC use genuinely different assessment instruments right now, PCC Markers for PCC, BARS for MCC, even though both are graded against the same 8 Core Competencies underneath.
MCS: not an assessment tool at all
Here's where it stops being about how candidates get scored and starts being about who's allowed to do the mentoring that leads up to it. Mentor Coach Specialization is a credential mentor coaches themselves have to earn, in three levels (MCS-ACC, MCS-PCC, MCS-MCC), matching the level they mentor at. Starting January 1, 2027, mentor coaching hours only count toward a candidate's credential if the mentor holds the MCS at the right level. I've written about the mechanics of that requirement, including the lesser-known path for mentor coaches who've been mentoring informally, in The 2027 MCS Requirement.
Why all four are showing up together right now
None of this is a coincidence of timing. Starting April 1, 2027, ICF is replacing the recorded-session performance evaluation with enhanced mentor coaching for ACC and PCC Portfolio-path candidates. Instead of a distant assessor applying BARS or Markers to a recording you submit, your own mentor coach increasingly becomes the person making that call, over the course of working with you, not from a single recording.
That's exactly why MCS exists. If mentor coaches are going to take on more of the evaluative weight that used to sit entirely with remote assessors, ICF needs those mentor coaches trained in the same frameworks, MSR, BARS, PCC Markers, that assessors already use. MCS is ICF formalizing that training requirement before handing mentor coaches more of the responsibility.
One more thing worth being precise about: none of this touches the written exam. The new PCC-MCC Exam launching November 10, 2026 is a separate, Pearson VUE-administered test of situational judgment and knowledge. MSR, BARS, and PCC Markers all assess a recorded coaching session, a completely different part of the credentialing process. Reading about a "BARS change" and assuming it affects your exam prep is a common, understandable mix-up, and it's wrong.
What this means depending on where you are
If you're prepping a PCC performance evaluation submission, the PCC Markers document is your actual scoring rubric. Read it directly rather than relying on secondhand summaries.
If you're prepping an MCC submission, read the current MCC MSR document, published behavior-by-behavior, and understand that BARS is now the name of the framework your recording is measured against.
If you're a PCC or MCC mentoring candidates, or planning to, the MCS clock is already running. Hours you mentor now under the old model still count if completed before January 1, 2027, but anything after that date needs MCS.
If you're an ACC or PCC Portfolio-path candidate whose exam date falls after April 1, 2027, expect your mentor coach to carry more of the evaluative role that used to belong entirely to a distant assessor. That's a real structural shift, not just new vocabulary.
