The Campus Center for Appropriate Technology (CCAT) is a student run sustainability organization located at Humboldt State University. Humboldt State University is the northernmost California State University located in Arcata, California, USA. CCAT has partnered with Appropedia to bring over 30 years of student based appropriate technology solutions to the world. Please see the pages categorized below. Pages in this category (listed below) may include subtopics, how-tos, projects, designs, organizations and more.