Lawrence,
A documented change request procedure might look something like below. The procedure for any particular project may be different than this. It really depends on the type and complexity of the project that is being managed.
Mark
Step #1: Identify the need for a change (Any Stakeholder)
Requestor will submit a completed change request form to the project manager
Step #2: Log change in the change request register (Project Manager)
The project manager will maintain a log of all change requests for the duration of the project
Step #3: Conduct an evaluation of the change (Project Manager, Project Team, Requestor) The project manager will conduct an evaluation of the impact of the change to cost, risk, schedule, and scope
Step #4: Submit change request to Change Control Board (CCB) (Project Manager)
The project manager will submit the change request and analysis to the CCB for review
Step #5: Change Control Board decision (CCB)
The CCB will discuss the proposed change and decide whether or not it will be approved based on all submitted information
Step #6: Implement change (Project Manager)
If a change is approved by the CCB, the project manager will update and re-baseline project documentation as necessary as well as ensure any changes are communicated to the team and stakeholders