Professional recognition for the Petroleum Engineering profession began developing in the early 20th century1,2 . Professional Registration for the Petroleum Engineer has seen some drastic changes since its implementation unto the national scene in 1907. Most of these changes occurred through the nationally administered National Council of Engineering and Land Surveyors (NCEES). The national Petroleum Engineering Professional Exam began in 1973 when NCEES started offering it to all states. The requirements to become registered gradually became stiffer. The advent of the Sunset Legislation fad in the 1980's really changed the state requirements. In 1973, the PE Exam began as a twenty problem offered, choose eight to work, objective style exam. By 1999, it had evolved to an eighty question, no choice, all multiple choice exam. As we enter the 21st century, computers will eventually administer the PE Exam.