Section 12(4)(a) in The Ammonium Nitrate Rules, 2012
(a)The Ammonium Nitrate storehouse shall maintain;(i)for storage not exceeding 30 MT, Safety Distance of 4.5 metres from store house to the compound wall and 45 metres from any protected works;(ii)for storage exceeding 30 MT, Safety Distance of 9 metres from store house to the compound wall and 90 metres from any protected works;