Excise duty exemption for woven polymer sacks under specified tariff headings removes the whole excise levy on those goods. The Central Government exempts woven sacks of polymers of ethylene, polymers of propylene, or combinations thereof, when falling under the specified tariff headings in the Schedule to the Central Excise Tariff Act, from the whole of the duty of excise leviable thereon, by notification issued under the Central Excise Rules.