Third-Party Evaluators - Third Party Evaluators are professional engineers with expertise in Pre-Manufactured Residential and Community/Commercial tornado shelter design. Third Party Reviewers must be able to devote their professional time to review engineering designs of our Producer Members. The process for application is as follows:
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1. Applicants must first join the NSSA as a Professional Member and agree to the terms and conditions of membership. 
   
   
2. The Professional Member can then notify the NSSA of the desire to become a Third Party Evaluator. They must submit professional credentials and specifically note experience in the tornado shelter industry. 
   
   
3. Third Party Evaluator applications will be reviewed by NSSA staff and those considered qualified will be recommended to the Board of Directors for approval. Tornado shelter design experience is required.
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4. When review process is completed, admittance will be granted to the successful applicant to add their professional listing to the NSSA list of Third Party Evaluators.