Thank you Felix,
Finding the right professional certification can be tricky with so many good choices.
The Certified Reliability Leader is about a creating an empowered and engaged, cross-functional, reliability culture in your organization, even if you are currently the only Reliability Leader.
The Certified Maintenance Manager is about the 18 skills one needs to be an effective business manager responsible for the Maintenance Department.
They are both unique in the world and with a history of many powerful and positive Reliability Journeys.
I hope this assists you in making a decision.