The NICET registration process is separated into two class distinctions with subcategories and several specialized areas of focus. The titles of the "Certified Engineering Technician" and "Certified Engineering Technologist" are the primary designations. The subcategories are further specialized by focus. The titles chosen for these subcategories are known as "Civil Engineering or Electrical/Mechanical Systems". Within the subcategories the disciplines are refined to address a selected area of expertise and are limited by categories that do not cover all areas of Technology.