International
Visa/Invitation Letter
Any person traveling to the United States who requires a passport or invitation letter should check with the appropriate embassy to determine exactly what is necessary to permit travel to the U.S. We will be pleased to provide you with an invitation letter upon request. Request invitation letter
General information about traveling to the United States and obtaining a visa is available. Learn more…
Additional information concerning visa appointment and processing wait times is also available. Learn more…
Reminder! Acquiring a visa for entry into the United States can take several months. You should apply for your visa as early as possible.
Health and Insurance
The registration fees do not include insurance. It is recommended that all registrants consult their travel agent and take out their own travel and medical insurance prior to coming to the event. The organizers cannot accept responsibility for uninsured participants.
Currency and Taxes
All transactions are based on US currency (dollars and cents). Denominations are $1, $5, $10, $20, $50, $100. Coins are 1, 5, 10, 25, and 50 cents. There are several branches of US banks within walking distance of the event venue; however, it is recommended that foreign currency be exchanged at Denver International Airport upon arrival.
Information about current exchange rates is available. Learn more…
The State of Colorado assesses taxes on most services and goods, and these taxes are typically included in the price of the goods purchased. No taxes will be added to your event fees.