Operational Steps of IIFCL’s EMS. 29. MoEF’s notification on environmental clearance (EC) follows a project classification scheme as A, B1, and B2 (see Figure 1). This classification factors project type, size, and sensitivity of location (see Appendix 3). IIFCL’s EMS will use this categorization to prioritize the appraisal and monitoring process followed by the EMS.