|Occupations in this area require knowledge in specialized fields such as science, math, engineering, law, and accounting. These positions generally require an advanced degree with major study in a specialized field.
||Occupations in this area require knowledge of principles and concepts related to administration, program management, and transportation. While these positions do not require specialized education, they do involve analytical, research, writing, and judgment skills.
||Occupations in this area consist of professional or administrative work. Duties require practical knowledge of pipelines, rulemaking processes, and geospatial information systems.