Committee on Preparation for Ministry
The Committee on Preparation for Ministry Advisory Handbook (updated December 2017) can be found at - http://oga.pcusa.org/section/mid-council-ministries/prep4min/.
The forms needed for inquirers and candidates can be found at - http://oga.pcusa.org/section/mid-council-ministries/prep4min/forms-used-preparation-ministry-process/