Tour operators will be eligible to use the GSTC’s world-renowned logo in their marketing materials once they have been confirmed by GSTC to have been certified to a GSTC Accredited program. To use the GSTC logo, the tour operator must simply enter into a licensing agreement with GSTC. The licensing agreement will last for one year. Each year, you will need to renew your licensing agreement and pay an annual licensing fee of only $100 per year. Renewing the license can be done quite easily as long as you have proof that your certification is up-to-date.