Along the same lines as this question on PM certification, I'm trying to work out the value of change management certification. Note that here I'm talking about managing and gaining acceptance for organizational changes and not how to control changes to a project plan.
I am a firm believer that the premise that effective organizational change management helps realize the benefits of a project or program, so see value in training in this space. Where things are less clear for me is whether or not certification is a useful thing to promote on a resume. Even if there isn't much demand today (and looking at job boards tends to make me think there isn't), there is nothing wrong with being an early adopter of something that is on an upward trajectory.
The main standards that I'm aware of include Prosci, which apparently has 20k+ certified practitioners, and a new certification program that the Association of Change Management Professionals is planning to release next year. My main qualm with ACMP is that their membership is orders of magnitude smaller than that of PMI so I'm not sure how credible they are.
So my question is: Is Change Management certification valuable to have either based on demand today or potential demand in the foreseeable future?