"NCEES Past President David Whitman, P.E., believes this process is necessary to keep up with changes in the profession. “Historically industries change enough every six to eight years that we need to keep our finger on the pulse of this change,” says Whitman, a Wyoming licensing board member and NSPE member.
Change is inevitable. In 1996, NCEES voted to transform the single FE exam taken by all majors into multiple FE exams based on six primary majors. The PE exams have also morphed over time into exams that are more specific to engineering specialties. The single mechanical engineering PE exam from 1995, says Whitman, doesn’t reflect what mechanical engineers are doing now in 2016. There are now three different mechanical engineering PE exams.
“If we are going to put a PE designation on someone, we want to do that under the current state of that particular industry,” says the University of Wyoming professor. “Once they get their license, they are expected to participate in continuing education to keep up with industry changes.” Link:
https://www.nspe.org/resources/pe-magazine/march-2016/the-ultimate-test
You really need to quit while I am ahead......