Frequently Asked Questions


  • What time zone is the meeting set to?

    Eastern Time (ET - USA)

  • Can I see or search the whole program and do any scheduling?

    On August 9, the full schedule will be accessible in the virtual meeting platform.

  • Can I change my registration type from hybrid to virtual only? 

    Yes, you may modify/change your registration time without penalty. To modiy your registration, contact the ACS Registration Call Center on Monday to Friday, 9 AM to 5 PM (Eastern) via 800-251-8629 (U.S. registrants), 508-743-0192 (International registrants) or email

  • Can I register onsite and what payment options are accepted?

    Payments can be made only by credit card. Cash or checks will not be accepted for onsite registration.

  • Will there be an in-person or virtual Expo at ACS Fall 2021?

    No, there will not be an exposition. A variety of hybrid, in-person, and virtual sponsor opportunities will be available to groups and companies. Please contact or 202-590-0662 for sponsor questions or assistance.

  • I also registered for (workshops/short courses/events at the division level) but I cannot locate it on the platform.

    For events that are being held in-person in Atlanta, the event will be listed on the ACS Engagement Events page with additional information regarding each of these events. The ACS Engagement Events page is coming soon.

  • Can I connect with other attendees within the meeting platform?

    Yes, there will be networking opportunities available in-between the technical sessions and afterwards via Divisional networking rooms and events. There will also be a global chat feature available within the platform to chat with registered attendees who have made their profiles public and viewable by other attendees.

  • How do I change my name or email address in the virtual platform?

    You must change your information within your ACS ID account and then log in to the platform to refresh these fields.

  • What will I use to log into the virtual platform for the meeting?

    Registrants will use the same ACS ID with password used to register for the meeting. If you have registered and have trouble logging in to the meeting, please contact or call 800-333-9511 (614-447-3776) for immediate assistance.

  • What are the preferred browsers for the meeting platform?

    Google Chrome, Mozilla Firefox, and Safari.

  • Will registration be required?

    All attendees and presenters are required to register to access technical sessions and events. 

  • Will in-person sessions be broadcast online for virtual participants to view?

    Many, but not all, in-person sessions will be broadcast for virtual presenters and attendees to participate via the virtual platform.

  • Where do I store my luggage while in Atlanta?

    There is not a bag check option at the Georgia World Congress Center (GWCC). Plan on leaving all luggage, additional bags, and materials at your hotel.

  • What are the cleaning and sanitizing procedures in the technical session rooms at the Georgia World Congress Center?

    High-touch surfaces in the meeting rooms will be cleaned throughout the day with disinfectants. Additionally, the use of electrostatic sprayers will be used in all meeting rooms as part of the overnight sanitizing procedures. Electrostatic sprayers contain positively charged particles that aggressively adhere to surfaces and, thus, are effective in disinfecting the entire room including chairs, tables, and other surfaces. Additional information is available in the Attendee Safety Plan section of this website.

  • What does the Georgia World Congress Center do to clean and sanitize the building during events?

    GWCC was the first convention center in the U.S. to achieve Global Biorisk Advisory Council (GBAC) STAR accreditation for cleaning, disinfection, and infectious disease prevention. It is the industry's only outbreak prevention, response, and recovery accreditation. GBAC STAR enables facilities to create and maintain an organized, effective approach to work practices, protocols, procedures, and systems to control risks associated with infectious agents, such as SARS-CoV-2, the virus responsible for COVID-19. For additional information, review the GWCC “Getting Back to Business”.

  • I live in Atlanta, and I have registered for a virtual presentation. If I want to go to the conference center to listen to other people talk, is it okay?

    You must be registered as a hybrid attendee to access the in-person events in Atlanta.

  • Who can I contact if I am having registration, log in, and speaker management access issues?

    Please contact Member Services at for assistance.

  • What is my log in and password for the virtual platform for the meeting? 

    Your ACS ID credentials used to register for the meeting are the log in and password you will use for virtual platform.

  • For those of us attending in-person, is there a location we can go to watch virtual sessions in the Georgia World Congress Center (GWCC)?  

    There are virtual viewing lounges located in the following GWCC rooms: A303; B209, B215, B315, and B404.  The GWCC also has seating in public areas near the Registration Hall and food outlets. Additional information including hours is available on the Attendee Resources page. 


Oral Presentation

  • What is the format of oral sessions for the meeting?

    From August 22 through August 26, the hybrid meeting will take place in-person and virtually. Oral technical sessions will take place in-person and pre-recorded presentations from virtual presenters will be played in-room. 

    These sessions will not be broadcast or recorded for on-demand. Maximum allotted time is 120 minutes per session.

  • Will oral presenters need to record and upload their presentation in advance?

    Oral presenters are encouraged to self-record their presentations in advance in case they are not able to participate live.

  • When will ACS communicate with all presenters?

    Acceptance (6/18) and scheduling (7/14) notices were sent to all presenters (oral and poster). For questions, contact

  • Can a presentation be moved to another session?

    The deadline to request a change has passed (July 14). All requests must come from the Division/Committee program chair. Program chairs and contact information are available on the list of symposia page.

  • I need to change presenters or I am presenting instead of the original presenter. Who do I inform of this change?

    To ensure presenters are properly identified for in-person or virtual sessions, we do ask that presenters are correctly noted in MAPS for each abstract in the program. Please contact ACS at to request changes to the designated abstract presenter.

  • Are we able to tell the exact time that our oral presentations will occur during these 2 hour blocks?

    Yes. Each oral presentation time will be posted in the schedule under the individual session.

  • Will the presentations and Q&A be accessible after the meeting?

    Abstracts will all be stored in the SciMeetings platform as the official meeting archive as well as available in SciFinder. If presenters have consented and paid, presentations and recordings will also be available in SciMeetings approximately one month after the meeting platform closes.

  • What software platform will the live oral technical sessions use?

    All live oral technical sessions will use Zoom meetings accessible via the virtual meeting platform. Please be sure to download the most up-to-date version of this platform prior to the meeting.

  • What background do I need for my presentation?

    ACS has optional Zoom backgrounds available as well as a presentation template and customizable images available for download on the Image Resources page.

  • Will there be technical support provided in the virtual meeting room?

    Yes, there will be a dedicated technical producer for each hybrid and virtual meeting room.

  • What do I do if an in-person oral technical session is full?

    Attendees will be able to view hybrid sessions via the meeting platform. For standard in-person meeting rooms, overflow viewing rooms will be available.

  • How do I find out what to do as a presider (aka moderator, session chair) for my session?

    Virtual session Presiders will have a very similar role to what they would in an in-person meeting. They must register for the meeting, log-in to the session early, verify presentation order, greet the speakers, introduce the speakers, keep the session on time, and lead the Q&A. Producers in the session will handle all technical aspects of Zoom support for the presider.

  • Will there be a warning before cutting off the virtual session?

    Yes. The technical Zoom room Producer will private chat with the Presider to inform them time is short and to wrap up Q&A. All sessions will automatically end at 5 minutes past the session end time if they haven't concluded by that time.

  • Will the Q&A be after each presentation or after all the presentations have been completed?

    Q&A can take place after each presentation or after all the presentations have been completed.

  • Will the virtual presentations and Q&A be accessible after the live technical session?

    All abstracts and select posters and presentations will be made available through SciMeetings. Presenters who select to add SciMeetings to their registration may record and upload a video to accompany their poster or presentation. Learn more about SciMeetings.

  • Is there a maximum number of questions assigned to each presenter so all presenters get the chance to answer questions?

    There is not a maximum number of questions per presenter. The presider will need to manage time and give each presenter an equal opportunity to  answer questions.

  • I am a presider for an in-person standard oral tech room and/or a hybrid oral technical room. Do I have to preside over these rooms in person?

    Yes, you must physically be in these rooms in person to preside.


Poster Presentation

  • How can I upload my poster with a recording?

    Please login to Speaker Management and Click on the Poster Presenter portal

    There will be activities to upload your poster and record a brief 3-5 minute presentation

  • Do I need to upload a poster file if I am presenting in-person?

    While uploading a poster presentation is not required for in-person poster presenters, it is encouraged so virtual attendees can view your poster.

  • What do I do for my in-person poster event?

    All materials must be confined to 4' high by 8' wide display board. 

    Authors must mount their poster during the one hour before the scheduled session start.

    Poster numbers supplied by ACS will be in the upper corner of each poster board. This number corresponds with the number assigned to each poster in the technical program.

    Pushpins will be available at the poster session.

    Authors must remain with their posters for the duration of their scheduled session, as indicated in the technical program.

    All posters must remain up until the session ends; they must be removed within one hour. ACS cannot assume responsibility for materials beyond these time limits.

  • What is the format of poster sessions?

    From August 22 through August 26, poster presentations will take place in-person and virtually during scheduled sessions, providing capability for live interactions.

    Posters will be on-demand in the virtual platform from August 22 through September 30. Poster presenters are required to upload their poster in PDF or PowerPoint format along with a high-resolution thumbnail image. Poster presenters may also choose to record a brief 3-5 minute video to accompany their poster to be available on demand throughout the meeting. Instructions to record a video will be provided to the poster presenters if they choose to do so.

  • I am participating in a live virtual poster event. Can I provide a recording of my poster and presentation for the event? 

    You must attend the session via the platform to present your poster live virtually during the poster session you have assigned to. Separately, you may record your poster presentation and make it available to others in the poster tab of the platform for OnDemand viewing. 

  • I was asked to create a live remo account. How will I use it? 

    The Remo account will be used only to access the Undergraduate Student Poster Session scheduled on Monday, August 23 at 11:00 a.m. ET.



  • I am participating in virtual Sci-Mix. Do I need to upload a separate poster if it is also part of a primary session?

    No separate upload is required for Sci-Mix selections. If the Sci-Mix participant is a virtual poster presenter in their primary session, then they still need to upload on the Poster Collection tab to satisfy that requirement.

  • Whom do I contact with questions about Sci-Mix if no presider is listed on the website for my session?

    Contact member services at:

  • Can I change my mind during the meeting to have my poster presentation added to Sci-Mix event?

    Sci-Mix selections are determined by the Division program chair. Please contact the program chair directly for information about participation in Sci-Mix.


Virtual Poster Event

  • What is the format of the live (virtual) poster events?

    The poster sessions will be in Zoom. Poster presenters will be placed in a breakout room where people can connect with them to ask questions about their poster.

    All poster presentations are concurrent during the two hours of each event.

  • What is the time limit for virtual poster presentations?

    Two hours.

  • What is the recommended poster format?

    At the live virtual poster events, posters can be presented as JPEG, PNG, PDF or in PPT.

  • Can I prepare a short PowerPoint to present in the poster session, instead of a poster?

    You have the option to present your research via a PowerPoint presentation.

  • Can I zoom in on my poster during the live poster presentation?

    Live virtual poster presenters will be sharing their screen and will have the ability to zoom in on the image/window they are sharing.


Oral Virtual/Hybrid Session Presenter

  • Will you provide the standard introduction slides (w/logo of the meeting) as in previous meetings?

    The session producer will play general information slides at the start of the session.

    There will not be any presenter intro slides during the sessions.

  • How much time before the session starts should in-person speakers upload talks in the ready room?

    30 minutes prior.

  • Does my scheduled presentation time of 20 minutes include time for questions?

    Your presentation time incudes the time for Q&A.

  • Can I pre-record my presentation and join afterward for live for Q&A?

    Yes, as long as a request has been submitted to pre-record and the pre-record has been uploaded by Friday, 8/20 at 11:59pm.

  • When is the deadline to request that a pre-recording of my presentation by played during my live session?

    The deadline to request a pre-recorded presentation is Friday, August 20 11:59pm. This can be accessed in Speaker Management under the Record Presentation & Opt-in for OnDemand activity.

  • How can I get approval to play my pre-recorded presentation during my live presentation?

    Send email to program chair for approval and then access Speaker Management. Select the ACS Fall 2021 Oral Presentation section, and under the ‘Record Presentation & Opt-in for OnDemand activity’ you may submit your pre-record request and/or opt-in for OnDemand and record our your presentation.

  • Who will be responsible for playing pre-recorded presentations during a session?

    There will be a producer in the room with you and they will play the pre-recorded presentation if the speaker has submitted it by Friday, 8/20 11:59pm.

  • What is the experience for virtual and hybrid presenters? 

    Experiences for virtual presenters will be different depending on whether their session is hybrid or virtual. Please refer to the presenter guide for more information.

  • How will questions be managed in a fully virtual session? 

    Questions should be submitted via chat. The Presider will select questions from the chat to ask the presenter.  

  • How will questions be managed in a hybrid session? 

    Questions should be submitted through the chat function as the sessions are being streamed in the platform and a moderator will be assisting. In-person attendees can ask questions by clicking on the “Join In-Person" button that will be available in the platform for each hybrid session so that their question will also be added to the platform chat function that virtual attendees are using. This can be done via while being logged into the platform on a personal device. The moderator will repeat the question verbally so in-person attendees can hear the question.

  • How will questions be managed in an in-person session? 

    Attendees should ask questions by raising their hands. The Presider will then call upon attendees to ask their questions. 

  • I am presenting in a virtual session and while in attending in-person. Where can I present? 

    There will be Presenter Virtual Presentation rooms available on a first come-first served basis. The Presenter Virtual Presentation room are located in the following GWCC rooms: B317, B318 and B319. If these rooms are already in use, you may join the virtual session from your hotel room, or wherever is convenient with an internet connection. 

  • When will the Speaker Ready Room be available? 

    The Speaker Ready Room will be open Sunday, August 22 to Thursday, August 26. It is located at GWCC B306.



  • I'm both a presider and a presenter in the same session. Do I need to introduce myself or will someone else?

    As the presider, you may introduce yourself.

  • How do presiders get speaker bios?

    Speaker bios can be obtained from the speaker.

  • How do I join my virtual session? 

    Add your session to your itinerary in the “Full Schedule & My Itinerary” tab in the platform. Join the session 35  minutes before the session start time and the session producer will let you into the room.

  • What do I do if a speaker does not show up or has withdrawn? 

    The open time must be held as a break or networking time. 

  • I am presiding over back-to-back sessions, entering the second session 35 minutes before the start might not be possible; will this be an issue? 

    This will not be an issue. There will be an Encore Producer in every room and they will be able to assist you even if you arrive a bit later.

  • Do I need to keep track of the attendance for my session? 

    You are not expected to keep track of attendance.


Technical Issues

  • I am a virtual presenter, how do I get into my Zoom room?

    Presenters may access the link to their technical session by clicking on the "My Account" button, then the "Speaker Management" tab, from here the Presenter will see their session(s) listed. Presenter will select the session by clicking "Launch" then clicking "Enter Live Session" and finally clicking on "Join Session".

  • I’m registered, but it says I’m not.

    Ensure that you've logged in with the ACS ID and password used to register for the meeting. If you have registered and have trouble logging in to the meeting, please contact or call 800-333-9511 (614-447-3776) for immediate assistance.

  • I am registered and logged in as a poster presenter, but I don't have the option to record my presentation.

    Ensure you are logged in to the meeting with the same ACS ID that you use to access your presentation in MAPS.  If you are unable to upload your presentation, please contact or call 800-333-9511 (614-447-3776) for immediate assistance.


Georgia Voting Law

  • Isn’t ACS concerned with the restrictive nature of Georgia’s new voting law?

    ACS believes that voting rights are fundamental to democracy and is hopeful that all states and the federal government will ensure all of its citizens are permitted the right to vote without barrier or limitation. While the new Georgia voting law is extremely concerning, ACS took into consideration the administrative order issued by Atlanta Mayor Keisha Lance Bottoms seeking to mitigate the effect of Georgia’s new election law, as well as lawsuits seeking to overturn the Georgia law. In making its decision to have an in-person presence in Atlanta, ACS also considered calls from former gubernatorial candidate Stacey Abrams asking organizations not to boycott the city and penalize its workforce.

  • Why did the Society decide to proceed with ACS Fall 2021 as a hybrid, with an in-person component in Atlanta?

    A key factor in determining whether to proceed with the hybrid meeting was presenter preferences indicated during submission of abstracts for the meeting. For the more than 7,000 abstracts submitted, roughly half of the presenters elected to present their research in-person, while the rest opted to present virtually.

    This demonstrated member preference, plus the fact that a limited in-person meeting could be done safely in Atlanta was a contributing factor to the decision. Additionally, as the number of vaccinated individuals increases and new cases diminish, Georgia’s public health emergency order expired at 12 AM on July 1 and operations in the state has returned to pre-pandemic status.

    It is clear ACS members are eager to gather in-person safely to share their science, and this will be the first opportunity to do so in over a year.

  • Isn’t there some way ACS can indicate its concern over the new voter law while holding a portion of the hybrid meeting in Atlanta?

    In connection with its in-person portion of ACS Fall 2021, ACS is engaging the local community through enhanced chemistry outreach activities. These efforts will have a special focus on students from underrepresented populations. The outreach will have two goals: to increase awareness, excitement and understanding of chemistry, and to attract greater diversity to the STEM (science, technology, engineering and math) pipeline and the chemistry enterprise. 



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