To measure a broad set of knowledge and skills to perform a specific job i.e. examinee competence in some job-related area.
To protect public safety by ensuring a minimum degree of competency on the part of the candidates i.e. the certificate holder is competent and professional.
It makes graduates more valuable to employers and can expect to:
Find better employment and advancement opportunities;
Have a competitive advantage over candidates without certificates;
Flexibility: Have a PE license opens career options to graduates;