(c) encourage private sector participation in livestock multiplication and distribution; (d) develop common regulatory framework in livestock multiplication, trade in semen, embryos, breeding stock, drugs and vaccines; and (e) harmonise quarantine regulations in artificial insemination and livestock breeding centres. ARTICLE 108 Plant and Animal Diseases Control The Partner States shall: (a) harmonise policies, legislation and regulations for enforcement of pests and disease control; (b) harmonise and strengthen regulatory institutions; (c) harmonise and strengthen zoo–sanitary and phyto-sanitary services inspection and certification; (d) establish regional zoo–sanitary and phyto-sanitary laboratories to deal with diagnosis and identification of pests and diseases; (e) adopt common mechanism to ensure safety, efficacy and potency of agricultural inputs including chemicals, drugs and vaccines; and (f) co-operate in surveillance, diagnosis and control strategies of transboundary pests and animal diseases. ARTICLE 109 Irrigation and Water Catchment Management The Partner States agree to take concerted effort to expand agricultural land through irrigation and water catchment strategies and for this purpose, shall: (a) co-operate in formulating and implementing Community irrigation programmes; 82 national and