Korean Open Access License (KOAL; ) is a copyleft license developed by IPLeft in South Korea based on South Korean law, which enable authors to give different kind of permission to others. Types There are four types of license in KOAL 2.0: Permissive: No restriction on purpose of usage and derivative works. (known as Commercial-Derivative works in 1.0) NoCommercial: Cannot be used in for-profit purpose. No restriction on derivative works. (known as NoCommercial-Derivative works in 1.0) NoDerivatives: No restriction on purpose of usage. No derivative works allowed. (known as Commercial-NoDerivatives in 1.0) NoCommercial-NoDerivatives: Cannot be used in for-profit purpose. No derivative works allowed. (known as NoCommercial-NoDerivatives in 1.0) External links Korea Open Access License Homepage Simple description on licenses License text for KOAL 2.0 Permissive License text for KOAL 2.0 NoCommercial License text for KOAL 2.0 NoDerivative License text for KOAL 2.0 NoCommercial NoDerivative Explanation on license term Copyleft Law of South Korea Free content licenses Intellectual property activism Intellectual property law