<p>The vast majoity of engineers in industry will not have PE's. However, the TECHNICAL project managers/leads in certain industries, most likely, will. Of course, the # of technical managers is far, far fewer than the number of people woking under them. A lot of the technical supervisors at GE (aviation, transportation), Lockheed (Aerospace, Avionics), Boeing, Motorola, Medtronic, Siemens have PEs. The PE (along with an advanced engineering degree) will be important if you intend to progress along a purely TECHNICAL career path. </p>
<p>And as was previously mentioned, you cannot call yourself an engineer or market any engineering services in any industry without a PE. Furthermore, you cannot officially approve or sign off on any design plans, even plans you may have designed yourself. You could work in stress analysis at Boeing for 15yrs, and have a PhD, but you couldn't legally call yourself an engineer. One of the engineering managers would have to ok your calculations (as opposed to you being the person giving the ok for others calculations). Furthermore, you'd never be able to market your stress analysis services yourself. I knew an individual in just such a situation. He was a PhD, principle analyst, and owner of a firm offering stress analysis services to various industries. He had to partner up with/hire a PE and list him as the principle investigator so that the firm could legally offer its services.</p>
<p>To those wonering how to get a PE, take the FE (8 hr exam), pass it, work for 4 yrs take PE (another 8 hrs), pass it, get PE license. I just took the FE myself. I actually don't need it or have any future ideas about getting a PE, but it's good to just get that 1st step out of the way just in case.</p>