Eco Pass Questions Answered

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If you do not have an Eco Pass, but think you are eligible, you may e-mail to verify your eligibility.

What do I use as my Eco Pass?

Each new eligible faculty/staff member will be issued an RTD smart card at the Buff OneCard office when they receive their campus ID card.

What is a smart card?

The RTD smart card is a contactless card that is similar to a photo ID (like the Buff OneCard) that contains a chip which stores Eco Pass data. The smart card is electronically reloaded in RTD’s system each year and simply turned off when an employee is no longer eligible.

How does it work?

Riders simply tap their smart cards on the validator and show the driver the card when boarding the bus so that the driver can match the photo on the card to your face.


What if I've been having trouble with my card when riding?

As RTD continues to transition to the smart card program, riders have experienced technical and driver difficulties. Should you have difficulties when riding, RTD has suggested that riders print this RTD-published Driver Bulletin. If you experience issues with your smart card, please email with the bus number and the error message displayed by the bus card reader.

Who is eligible for the Eco Pass?

Any CU employee working with more than a 50 percent of full-time appointment on the Boulder campus, excluding students and temporary employees, is eligible for an Eco Pass. Eligibility is determined by your employment records in the PeopleSoft HR system.


What do I do if I lost my Eco Pass?

Replacement cards can be picked up at the Buff OneCard office in room N180 of the Center for Community. There is a $10 fee to replace a lost pass.

Should I still keep my Buff One Card?

Yes, the Buff OneCard is your official form of university identification and it can be used to access other campus services such as libraries, printing, campus cash, and door access.

Is the SkyRide service fare-free?

All Eco Pass holders ride the SkyRide free!  The Skyride AB route from Boulder to Denver International Airport (DIA) changed in May 2016.  The current route departs Boulder on Highway 36 as before, but after stopping at the Interlocken US 36 & Flatiron Station it turns onto the NW Parkway and proceeds to DIA.  Riders between Interlocken and Denver on Hwy 36 will either need to take a bus to the Flatiron Station and transfer to the AB or take a bus to Union Station in Denver and transfer to the University of Colorado A Line, which runs between Union Station and DIA.  Link to SkyRide AB route map.


What if I get a smart card and don’t want it?

Please keep your Eco Pass smart card; you never know when you’ll need it. Your smart card can be used on the Stampede bus, for travel between Main and East campus. Additionally, CU has partnered with the city of Boulder to bring Eco Pass holders great discounts at local businesses. More information on the Eco Pass Extra program can be found at

Is my spouse/partner/family eligible for an Eco Pass?

No. The Eco Pass is for employees only. You can purchase discounted passes for others at by clicking “Passes and Fares.”

I think I’m eligible for a pass but didn’t get one, what can I do?

Eligibility is determined by your employment records.  If you have an appointment of 50% full time or more, or if you have two appointments exceeding 50%, e-mail to discuss your eligibility.

What if I have questions about using my pass or the bus system in general?

Please call Clark Rider 303-735-7874 or e-mail with all of your Eco Pass or sustainable transportation questions. You can also find bus route and schedule information as well as a trip planner online at or by calling RTD at 303-299-6000.