Request for Proposals to provide Guided Interpretive Oversnow Vehicle Tours within Yellowstone National Park CC-YELL5OS-26

The National Park Service (NPS) provides notice of the release of a Prospectus to solicit proposals for the award of up to 13 Concession Contracts (No. CC-YELL5OS-26) to provide guided oversnow vehicle tours within Yellowstone National Park ( Park ). The effective date of the next Concession Contracts is expected to be July 1, 2026. The Prospectus explains the business opportunity and the terms and conditions under which the NPS will award the Concession Contracts. The Prospectus will be available at https://www.nps.gov/subjects/concessions/prospectuses.htm. Questions Due If you do not understand something in this Prospectus, you must submit your questions or comments to Jennifer Parker, Commercial Services Program Lead, via email at IMR_concessions@nps.gov no later than 4:00 p.m. Mountain Time on July 2, 2025. The questions must be in a format that allows the NPS to copy them to Microsoft Word. Notice of Intent to Propose If you plan to submit a proposal in response to this solicitation, you must notify Jennifer Parker, Commercial Services Program Lead, via email at IMR_concessions@nps.gov no later than 4:00 p.m. Mountain Time on August 27, 2025. The NPS will not accept proposals from entities that do not provide notice on or before that date. Submission of an Electronic Proposal Prior to the electronic submission deadline of September 17, 2025, you will receive a welcome email message from the NPS s Microsoft Teams platform at the email address you provided when you notified the Service of your intent to submit a proposal. You must accept the invitation before you can access the Teams site to upload your proposal. The NPS will not accept proposals submitted in hardcopy or via another electronic platform, including email. Contact List To be put on a contact list to receive amendments or any additional information specific to the Prospectus, interested parties must provide their contact information (name, email address, and phone number) to Jennifer Parker via email at IMR_concessions@nps.gov. Information relative to the solicitation will also be posted to the above-mentioned website. The contact list already includes the Existing Concessioners.

Amendment 1 provides responses to questions received and amends the three Prospectuses for oversnow vehicle tours in Yellowstone National Park that the National Park Service ( Service ) issued on June 4, 2025, for Concession Contract Nos. CC-YELL500-26, CC-YELL5OS-26, and CC-YELL5XX-26. The deadlines are changed as follows: QUESTIONS DUE (second round): August 27, 2025 NOTICE OF INTENT TO PROPOSE DUE: September 17, 2025 ELECTRONIC PROPOSALS DUE: October 1, 2025 HARDCOPY of OFFEROR S TRANSMITTAL LETTER DUE: October 8, 2025 ___________________________ The National Park Service (NPS) provides notice of the release of a Prospectus to solicit proposals for the award of up to 13 Concession Contracts (No. CC-YELL5OS-26) to provide guided oversnow vehicle tours within Yellowstone National Park ( Park ). The effective date of the next Concession Contracts is expected to be July 1, 2026. The Prospectus explains the business opportunity and the terms and conditions under which the NPS will award the Concession Contracts. The Prospectus will be available at https://www.nps.gov/subjects/concessions/prospectuses.htm. Questions Due If you do not understand something in this Prospectus, you must submit your questions or comments to Jennifer Parker, Commercial Services Program Lead, via email at IMR_concessions@nps.gov no later than 4:00 p.m. Mountain Time on July 2, 2025. The questions must be in a format that allows the NPS to copy them to Microsoft Word. Notice of Intent to Propose If you plan to submit a proposal in response to this solicitation, you must notify Jennifer Parker, Commercial Services Program Lead, via email at IMR_concessions@nps.gov no later than 4:00 p.m. Mountain Time on August 27, 2025. The NPS will not accept proposals from entities that do not provide notice on or before that date. Submission of an Electronic Proposal Prior to the electronic submission deadline of September 17, 2025, you will receive a welcome email message from the NPS s Microsoft Teams platform at the email address you provided when you notified the Service of your intent to submit a proposal. You must accept the invitation before you can access the Teams site to upload your proposal. The NPS will not accept proposals submitted in hardcopy or via another electronic platform, including email. Contact List To be put on a contact list to receive amendments or any additional information specific to the Prospectus, interested parties must provide their contact information (name, email address, and phone number) to Jennifer Parker via email at IMR_concessions@nps.gov. Information relative to the solicitation will also be posted to the above-mentioned website. The contact list already includes the Existing Concessioners.