Affiliate members have an interest in advancing the purpose and objectives of NSSA and are classically trained engineers or scientists. Individuals that work in supporting roles for tornado shelter design such as interior designers, associate engineers or architects, CAD technicians, students and others. This category can include individuals, a company, association, partnership or non-profit group who supports the NSSA objectives, including advancing public safety planning for severe weather events. Affiliate Members do not qualify for another member grade.