Commodity Derivatives Certification mandated for approved users and sales personnel; transitional periods and specified exemptions apply. Associated persons functioning as approved users and sales personnel in the commodity derivatives segment must obtain the NISM-Series-XVI Commodity Derivatives Certification Examination; trading members must ensure compliance. Existing role-holders must obtain certification within a transitional period, new hires within a shorter transitional period, and specified prior certifications (MCCP, NICR Commodity Trader, NSE Commodity Market Module) are exempt until their validity expires. The notification is effective on publication in the Official Gazette.