Pass the assessment to receive your NEI Certification! The following assessment consists of 40 questions covering all 14 modules to assess your proficiency in the topics presented in the NEI Core Curriculum modules. You need a minimum of 90% (36 out of 40) to pass the assessment and become NEI Certified. Feedback is given on each question, so don't worry if you miss it on the first try. You can take the assessment as many times as you need.