File:Ph seal Lebak, Sultan Kudarat.png

Nature of a Philippine local government unit corporate seal
Local government units have the power to have a corporate seal. Use of the corporate seal and change thereof requires registration with the Department of Interior and Local Government. Registration of the seals with the Department of Trade and Industry and the Intellectual Property Office IS NOT required because municipal corporations do not fall within the scope of the term "business" or "enterprise." The chief purpose of a government seal has been to identify and authenticate documents.