ABSTRACT Because a majority of petroleum engineers fall under the industrial exemption, registration is usually taken for granted as a procedure that is always available if needed. Even registered engineers in public practice tend to view it as a governmental requirement without relating registration to their status as a professional and their responsibility to the public's health, safety and welfare. Professional registration is not exempt from the winds of change originating in our increasingly consumer-oriented, environmenţly-conscious society. Although petroleum engineering has been a well established discipline for over fifty years, it is classified as a "minor" discipline because of the number of licensed practitioners. The increase in the number of recognized minor engineering disciplines in the last two decades has led to proposed revisions in the registering process. Lacking a well developed professional image, petroleum engineering is vulnerable to these proposed changes. Recently, two states proposed revisions that would make it more difficult to register as a petroleum engineer. Periodically, industrial exemptions come under question. These are few of the current issues that pose a possible threat to registering as a petroleum engineer. The practice of engineering is not a natural or constitutional right. The separate states have the authority to determine who is qualified to practice as an engineer. If the majority of petroleum engineers are content to earn a paycheck and achieve passable competency in a limited area with little regard for the broader aspects of professionalism, we may lack sufficient credibility as a discipline to control our destiny.