The GSTC Professional Certificate in Sustainable Tourism is awarded to those who have (a) completed a training class by the STTP, and (b) successfully passed the official STTP Exam. The Certificate, signed by the GSTC Chair and CEO, recognizes that the recipient has demonstrated their knowledge of the GSTC Criteria. Those who achieve a 80% pass mark on the STTP Exam will receive a GSTC Professional Certificate in Sustainable Tourism.