Guidelines, Rules, and Conditions pertaining to permits issued under Rebate Item 306.01/2815.11/03.06 for rebate on Solid Sodium Hydroxide (Caustic Soda), classifiable under tariff subheading 2815.11, for conversion to Sodium Hydroxide in Aqueous Solution (Soda Lye or Liquid Soda), classifiable under tariff subheading 2815.12