The 18th Annual OPIS RFS, RINs & Biofuels Forum will take place at the Radisson Blu Aqua Hotel in downtown Chicago. Conveniently located near the Financial District, the hotel offers easy access to top attractions including Millennium Park, โThe Bean,โ the Chicago Riverwalk, Navy Pier, and the Magnificent Mile. Guests will also be within walking distance of Chicagoโs renowned dining, shopping, architecture, and entertainment.
Radisson Blu Aqua Hotel
221 North Columbus Drive
Chicago, IL 60601 – USA
OPIS has reserved a block of rooms for attendees at the 18th Annual OPIS RFS, RINs & Biofuels Forumย at a special rate of $370.00 per night (single/double) at the Radisson Blu Aqua Hotel.
This discounted rate is available for the period of Monday, October 12 through Wednesday, Octoberย 14; subject to hotel availability. The cutoff date is Friday, September 11, 2026. Please note that the room block is anticipated to fill quickly, so early booking is strongly encouraged.
Rooms within the 18th Annual OPIS RFS, RINs & Biofuels Forumย room block are reserved for registered conference participants only. Booking instructions will be included in the confirmation email sent to participants after completing registration.
All reservations must be guaranteed with a credit card and are subject to the hotelโs standard terms and conditions, including cancellation and changes to room type/dates once reserved. Room rates include applicable tax, currently 17.40% and a $26.00 urban fee. Room rate includes Wi-Fi.
For any general questions, please contact the OPIS RFS, RINs & Biofuels Forum Events Team at: registrar@opisnet.com.

Delta Air Lines and United Airlines are excited to offer special travel discounts for attendees of the 18th Annual OPIS RFS, RINs & Biofuels Forum. Promo/meeting codes to book your flights will be provided in the confirmation email sent to all participants upon completing registration.
All participants are expected to adhere to the OPIS Terms & Conditions and Code of Conduct for events which was agreed upon during registration, a copy of which can be found HERE.ย Additionally, our Privacy Policy is available to view by clicking thisย LINK.
Refunds and Substitutions โ No refunds will be provided to participants who do not attend an event once registered. Substitutions are allowed at any time up to 48 hours prior to the start of an event, provided that OPISย is notified of and approves same in writing. If a participant does not attend an event and does not send a substitute, then they and their organization/company are still individually and jointly responsible for all fees due and payable for participation. In the unlikely event that OPIS is forced to cancel or postpone an event, then participants will receive a full, internal credit of all fees paid to be used at a future event within the next twelve (12) months.
Event Materials โ All parties agree that the event materials and information conveyed during the event are confidential, copyrighted, and proprietary to OPIS or a third party. None of the parties will use the event materials or information conveyed during the event except pursuant to a nonexclusive, nontransferable right and license hereby granted by OPIS for delegatesโ internal business purposes, and not for sale, sublicense, or other disclosure, distribution, or republication to or for a third party. No copyright, trademark, or other proprietary notices of OPIS or any third party contained in the event materials may be altered or removed and OPIS specifically disclaims any/all liability associated with same.
Information with Other Participantsย โ Unless participants specifically opt out during registration, OPIS may share delegate contact information with event sponsors and/or partners who may contact delegate with details of programs or events occurring during the event that may be of interest or to schedule meetings or discuss areas of mutual areas.
Letter of Invitationย โ Only registered attendees whose registration fees have been paid in full will be eligible to receive a letter of invitation. Once your registration is complete, you will receive a confirmation email with instructions on how to request your letter. All requests must be submitted byย Friday, September 11, 2026ย to allow sufficient time for processing.
Please note that, in accordance with our companyโs privacy policies regarding the transmission of personal data, we are no longer able to collect passport details for inclusion in letters of invitation. It is highly likely that your embassy will also require a second letter from your employer or institution containing passport information, to be submitted alongside our letter of invitation. Due to US and international sanctions, we are restricted from providing letter of invitation or visa assistance to the following companies and residents from: Cuba, Iran, North Korea, Syria, Russia and The Crimea, Donetsk, and Luhansk regions of the Ukraine.
Do you need a letter of invitation for visa purposes to enter the United States?
Unsure if you need a visa,ย click here to review the Visa and entry requirements for the United States