Useful Information for the Quadrennial Ozone Symposium to be held in Boulder (re-worded from details posted on the SPaRC 2022 General Assembly, hub in Boulder)

You may need to apply for a visitor visa if travelling abroad for the Quadrennial Ozone Symposium.  People from certain countries do not need to apply for a visa before travelling to the USA, providing you only intend to stay temporarily. For more information about obtaining a visa see:

Letter of Invitation

If you require a formal letter of invitation to apply for a visa to attend the Quadrennial Ozone Symposium 2024, held in Boulder Colorado, please contact us with your request. The following information should be included in your email:

  • Title (eg: Prof / Dr / Mr / Ms)
  • Full Name
  • Nationality
  • Affiliation
  • Address
  • Your title and abstract that has been submitted
  • Your contribution to the symposium  

Travel To Boulder

Denver International Airport (DIA) to Boulder


University of Colorado (General Information)

Registration and Meeting location

Glenn Miller Ballroom (GMB) Location on CU Campus

Glenn Miller Ballroom Map

GMB contained in the University Memorial Center

CU Map


Hotel Information in Boulder

Coming soon.  (2/2/2024 update) A limited number of discounted hotel rooms ($239 and $259 plus taxes) as well as inexpensive university housing (about $100 per night plus required fees for linen and meals) will be available for registered participants. Further information will be added to the website in the next few weeks.

Bus options in Boulder and the surrounding area

Biking and Walking in Boulder