CEQA provides that certain kinds of projects may be subject to CEQA. Some of these projects may be excluded or exempt from CEQA. If not excluded or exempt, CEQA provides a process whereby an initial study is completed, then a determination is made as to whether a negative declaration, mitigated negative declaration, or an environmental impact report ("EIR") should be prepared. In accordance with the requirements of CEQA and as specified herein, the Planning Commission and/or the Environmental Review Officer shall determine when CEQA applies to a project, when the project is excluded or exempt, or when a negative declaration, mitigated negative declaration, or environmental impact report is required.