Actually, the final fee was paid with the application. I don't think they restrict the use of the PE designation once you complete the qualifications (application, fee, exams).
The email I received on the day they posted grades:
"Congratulations! You have received a passing grade on the October 2006 PE exam. Your grade is available on the board website at
"Your PE number is: xxxxx
"The next step in the licensure process is to create an official seal and to return a copy of the seal imprint and a photograph to the board. To expedite this process, please find attached the instructions for creating a seal and the seal imprint form that you need to return to the board.
"YOU CANNOT OFFICIALLY SIGN OR SEAL DOCUMENTS UNTIL YOU HAVE RETURNED THIS SEAL IMPRINT INFORMATION.
"We will be printing your official certificate and other information and sending it to you via regular mail in the next few weeks."
I received an email today:
"Congratulations on your licensure as a Professional Engineer in the state of Texas!
"The board has received and accepted your sample seal and photograph. The licensure process is now complete. You may stamp and seal documents according to the law and rules of the Texas Engineering Practice Act and the Texas Board of Professional Engineers."