Appointment of IFS officers to posts under Autonomous Bodies, Commissions, Authorities, Boards, Societies under the control of MoEF i.e., ICFRE, IIFM, WII, IPIRTI, CZA, etc. are called as Non-CSS posts of the MoEF.
All appointments to posts under Autonomous Bodies, Commissions, Authorities, Boards, Trusts, Societies under the control of other Ministries/Departments in Government of India are called as Non-CSS posts of the DoPT (other than specific posts directly under the control of respective Ministries).