▁Asian ▁Development ▁Bank ▁has ▁estimated ▁that ▁inter - reg ional ▁trade ▁in ▁SA AR C ▁region ▁possessed ▁the ▁potential ▁of ▁shooting ▁up ▁agricult ural ▁exports ▁by ▁$ 1 4 ▁billion ▁per ▁year ▁from ▁existing ▁level ▁of ▁$ 8 ▁billion ▁to ▁$ 2 2 ▁billion . ▁The ▁study ▁by ▁Asian ▁Development ▁Bank ▁states ▁that ▁against ▁the ▁potential ▁average ▁SA AR C ▁int ra - reg ional ▁trade ▁of ▁$ 2 2 ▁billion ▁per ▁year , ▁the ▁actual ▁trade ▁in ▁South ▁Asia ▁has ▁been ▁only ▁around ▁$ 8 ▁billion . ▁The ▁un capt ured ▁potential ▁for ▁int ra - reg ional ▁trade ▁is ▁therefore ▁$ 1 4 ▁billion ▁per ▁year , ▁i . e ., ▁ 6 8 %. ▁ ▁SA AR C ▁Vis a ▁Ex em ption ▁Sch eme ▁The ▁SA AR C ▁Vis a ▁Ex em ption ▁Sch eme ▁was ▁launched ▁in ▁ 1 9 9 2 . ▁The ▁leaders ▁at ▁the ▁Four th ▁Sum mit ▁( I sl am abad , ▁ 2 9 – 3 1 ▁December ▁ 1 9 8 8 ), ▁real izing ▁the ▁importance ▁of ▁people - to - people ▁contact ▁among ▁SA AR C ▁countries , ▁decided ▁that ▁certain ▁categories ▁of ▁dign itar ies ▁should ▁be ▁entitled ▁to ▁a ▁Special ▁Tra vel ▁document . ▁The ▁document ▁would ▁ex empt ▁them ▁from ▁vis as ▁within ▁the ▁region . ▁As ▁directed ▁by ▁the ▁Sum mit , ▁the ▁Council ▁of ▁Minister s ▁regularly ▁kept ▁under ▁review ▁the ▁list ▁of ▁entitled ▁categories . ▁ ▁Currently , ▁the ▁list ▁included ▁ 2