Registration Fees

Registration Fees (Live, In-Person)*

The HOS Symposium will be held at the Renaissance Chicago Downtown Hotel in Chicago, IL September 6-7, 2023. Symposium registration includes all keynote, plenary and panel sessions, roundtables, breakfast, networking and coffee breaks, technical seminars, entry into the Exhibit and Poster Hall, the welcome and exhibitor receptions, access to the digital schedule featuring the final program, abstracts, and presenter’s slides, uploaded e-posters, and any accompanying presentation videos. Registration closed August 23, 2023.


Regular by AUGUST 23, 2023





(Add-On) Mass Spec Day 3





*All registration fees are in US dollars.
**Onsite registration is subject to availability and is not guaranteed.

Cancellation Policy
A refund will be available if cancellation notice is received in the CASSS office by Wednesday, August 23, 2023, less an administrative fee equal to 10% of the registration fee (in US dollars). No refunds will be available after this date. Substitutions are accepted.

CASSS is a non-profit professional membership society that provides networking and peer-to-peer learning opportunities for professionals involved in the development and regulation of biopharmaceutical products worldwide. 

Contributions or gifts to CASSS are not tax deductible as charitable contributions; however, they may be tax deductible as ordinary and necessary business expenses. Please consult your tax advisor. The CASSS Federal Tax ID number is 77-0048350.


New to CASSS? First-time attendees are eligible to receive a 23% discount on registration. Promo code = NewIn23

Dynamic Duo. Register for HOS plus the Mass Spec Short Course to receive a 15% discount on registration. Promo code = HOS23_DD

Triple Threat. Register for HOS plus the Mass Spec Short Course AND Mass Spec Day 3 to receive a 20% discount on registration. Promo code = MSHOS23_3T 

Welcome Back! Registrants from the past three HOS Symposia (2020-2022) are eligible to receive a 20% discount on registration. Previous attendance will be verified.

Contact Program Manager Carolyn Slade for more information on the available registration rate promotions and for the Welcome Back! promo code.

*Promotions do not apply to exhibitors or program partners.

Volunteer for Breakfast Chats

Are you planning to attend, or interested in volunteering? We are looking for volunteers to provide diverse perspectives to the next generation of CASSS leaders. It is a great opportunity to become more involved in the CASSS community.

Image with text 'call for casss volunteers'