The custodial profession today not only commands respect, but also requires a high degree of knowledge and skill. One of the important byproducts in the evolution of the custodial profession is CMI’s Custodial & Maintenance Supervision Certification online course. It is truly a milestone in our profession. The online course is divided into four sections of which covers a particular area of supervising and managing custodial maintenance work. The final online certification exam covers all the information that has been presented within the course. Upon obtaining a passing score of 80% in each of the four modules, you will receive your Certified Custodial Supervisor (C.C.S) certification, which is valid for 2 years.