These contents offer methodological, technical, and style indicators for EDIA Project creators and collaborators inrelationship with the creation of Open Educational Resources (OER) for the National Center for CurriculumDevelopment in Non-Proprietary Systems (Cedec). This guide is a new version of the Cedec Guide for the Creation of Open Educational Resources. It has been draftedbased upon the style guide for material development that is used by the Regional Government of Andalusia -Department of Education - General Directorate for Vocational Training and Lifelong Learning - Lifelong LearningService.