[_delirium]

It's not nearly that strict. You can't use the title "Professional Engineer" without licensing, but non-licensed engineers can and usually do use the term "engineer", or derivatives like "chemical engineer" on their business cards and resumes. It's the norm in firms with a lot of engineers (like, say, Exxon) that most of the people whose job title includes the word "engineer" are not PEs. It doesn't even really give you any benefit to be a PE in the corporate context, because everything you're doing is on behalf of the corporation anyway; you're not an independent contractor providing services that you have to legally stand behind, but an employee doing work for hire.

edit: This is true for the U.S. anyway. I believe some other countries are more strict on who may call themselves an engineer.