STI is a quality assurance agency providing ecocertification for sustainable tour operators, join us

If you'd like to become a member of STI, simply fill out the following form in its entirety, then click on "Submit". If you need any assistance whatsoever, call STI at 720.273.2975 or email us.

Please allow five business days for processing. One of our representatives will contact you to answer questions and/or set up a time to discuss your membership. We look forward to hearing from you.

MEMBERSHIP APPLICATION
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Membership Fee:	$0.00
Payment Method: Membership fees are non-refundable.	Check (payable in US$) Money Order Credit Card (Mastercard/Visa)
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CONTACT US!

SUSTAINABLE TRAVEL INTERNATIONAL
P.O. BOX 1313
BOULDER, COLORADO 80306

PHONE: 720.273.2975

info@SustainableTravelInternational.org

BUSINESS HOURS: 8am-5pm MST