Conditional exemption exclusions: specified international, diplomatic, policy and personal import categories removed from subsection constraints. The amendment inserts a proviso excluding specified categories from subsection (4A) of section 25, so that the subsection does not apply to exemptions under multilateral or bilateral trade agreements, obligations from international agreements and diplomatic or international organisation arrangements, privileges of constitutional authorities, schemes under the Foreign Trade Policy, Central Government schemes valid for more than two years, re imports, temporary imports, gifts and personal baggage, and to customs duties leviable under existing law except certain specified customs duties.