Excise amendment alters per tonne tariff for petroleum crude production and ATF export, effective from July. An amendment to Notification No. 18/2022 Central Excise replaces the entry in column (4) against S. No. 1 in the Table, modifying the per tonne charge applicable to production of petroleum crude and export of aviation turbine fuel; the amendment is effective from the specified date in July 2023 and is issued under the Government's powers to further amend the principal notification.