Tanzania Official Seed Certification (TOSCI) is a government Institute under the Ministry of Agriculture (MoA) established under the Seeds Act No. 18, 2003. TOSCI is responsible for Certification and promotion of quality agricultural seeds produced o imported into the country for sale to safeguarding farming community from poor (fake) seeds from vendors of farm inputs

TOSCI has five mainly branches including the head office located in Morogoro Municipal. The other four branches are located at Tengeru (Arusha), Maheve (Njombe), Ukiriguru (Mwanza) and Naliendele (Mtwara).