NII certification requirements include an exam delivered via computer-based testing (CBT) for the Bridge Specialty certification. Certification exams for the Nuclear and Marine Specialty are delivered as part of the respective course.
Bridge and Marine Specialties are renewed with the primary certification renewal. The Nuclear Specialty is also renewed with the primary but requires the additional document located in My Certification Portal. Certification holders are required to pay a non-refundable processing fee for renewal.