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Attendee FAQs

Have a question about registration, technical sessions, or conference activities? We can help! Below we have answered some of the most Frequently Asked Questions about attending RETC.

How do I register to attend RETC?

Registration for RETC will open February 2023. Both Attendees and Exhibitors will be able to register online. For additional questions, please contact SME Customer Service at 303.948.4200 or via email at or To receive early bird registration rates, SME must receive your registration form and full payment by May 4, 2023. Regular rates apply May 5, 2023 – June 5, 2023. After June 5, 2023, on-site registration fees apply.

Sign-up for the RETC mailing list to receive all conference updates and to be notified when conference registration opens.

How can I register more than one person?

Need to register a group of people from your organization? Once you’ve completed your own registration, there is an option to “Register Someone Else.” Click on that link and add your colleague’s information. Payment will be processed for all included registrations after you’ve entered all participants.

How can I get a copy of an invoice or a receipt?

To download a copy of your registration receipt, please visit, login to your SME account using your email and password, visit My Profile and view My Meetings. Click on View Registration to obtain a copy of your receipt. You may also contact SME Meetings at or SME Customer Service at 303.948.4200 or with receipt/invoice inquiries.

If I preregister, when do I receive my badge and conference materials?

All badges and conference related materials will be distributed onsite at the RETC registration desk located at the Hynes Convention Center in Boston.

What does my full conference registration include?

The full conference registration fee includes participation in all technical sessions, access to the exhibit hall and exhibit hall social functions including opening reception, exhibit hall luncheons and the exhibit hall reception. In addition, all attendees will receive a USB flash drive and a printed copy of the conference proceedings.

Are short courses included in the registration fee?

The Short course requires an additional fee. Ticketed functions, such as the Welcome Lunch on Monday and the Tuesday UCA Breakfast also require a separate fee and can be added in the registration process. There is no field trip planned for RETC 2023.

What are the exhibit hall hours?

The exhibit hall is open on Monday, June 12 from 5:00 pm to 7:00 pm, Tuesday, June 13 from 11:00 am to 2:00 pm and 4:00 pm to 7:00 pm, Wednesday, June 14 from 9:00 am to 12:00 pm.

When does onsite registration open for attendees?

Onsite registration will open on Sunday, June 11 at the Hynes Convention Center in Boston.

Is there a one-day registration option for the RETC 2023?

One-day registration is not available for RETC.

May I bring a guest to meals and social functions?

A spouse/companion registration includes access to the exhibit hall and exhibit hall social functions. It does not include paid event tickets.

All guests need to be registered and must wear an official badge to functions. Purchase of additional tickets may be required if applicable. The spouse/guest registration is intended for those not employed in the industry and does not include admission to technical sessions. SME reserves the right to cancel, without notice, a spouse/companion registration suspected to be for a professional and/or sponsor.

How do I change my address or other contact information?

To edit your contact information, please visit, login to your SME account using your email and password, visit My Profile and view My Contact Information. Click on the Edit button next to either your address or phone number to edit your contact information. You may also contact SME Meetings at or SME Customer Service at 303.948.4200 or with questions about updating your contact information.

What is the refund and cancellation policy for conference registration?

If circumstances require you to cancel your RETC registration, you must do so in writing. Written notice must be sent via email at or Cancellations received on or before Thursday, May 11, 2023, will receive a full refund, less a $100 processing fee. There are no refunds for no-shows and cancellations received after Friday, May 11, 2023. Registrants are responsible for cancellation of their own hotel accommodations. Substitutions will be accepted in writing at no charge until Thursday, May 11, 2023. After Thursday, May 11, 2023, a $25 fee will be charged for substitutions.

Why should I stay at  the official conference hotel?

SME has negotiated a special discounted rate at Sheraton Boston Hotel exclusively for RETC attendees. Staying within our designated hotel room block allows us to keep your registration costs low and continue to negotiate competitive room rates for all conference participants.

How do I reserve housing for RETC?

To book within the official block at Sheraton Boston Hotel and receive your conference perks, you must book using the online link at Hotel & Venue.

RETC is not working with any vendors to fill our housing block and any representation from an individual not directly employed by SME is not advised. Often these companies misrepresent their relationship with SME or RETC and offer a fraudulent rate or have malicious intentions. In some cases, their rate does not include the lowered resort fee. If you receive a suspicious call or email inquiring about housing, please notify RETC at

I have a question about registration, transportation, hotel accommodations or a general question that is not covered here, who should I contact?
If you have additional questions, please contact SME customer service at 303.948.4200 or 1.800.763.3132 (US only), or email SME Meetings at


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What Attendees Say

Over four decades of conferences, RETC provides both the experienced tunneling professional and the individual just starting in the business the opportunity to stay connected while integrating new ideas and innovations into contracting, design, and construction.

Bill Mariucci
Team Leader, Kiewit infrastructure Co.
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    Englewood, CO 80112
  • Phone: 303.948.4200
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