Orange County Section

Welcome Message

The Orange County Local Section of the American Chemical Society (OCACS), located in Southern California, is one of the 185 Local Sections of the American Chemical Society. Established in 1962, we have over 1000 members. We promote the general awareness of chemistry in our community and work with students to encourage their growth in the field of chemical science.

ELECTION for 2018-2020
Local Section ACS Councilor & Alternate Councilor

We are using a secure online voting system for this year's elected local representatives to ACS who help set national policy while serving as a bridge between national policy and our local section.

Click for details.

You will be receiving an email from with the subject "ACS Orange County Section Election 2017 - Vote Now!".

  • Please click on the link to cast your vote. You do not need to create an account
  • Voting closes November 11, 2017

If we do not have your email address, you should receive a paper ballot by October 31, 2017.
  • Ballots must be returned and received by Saturday November 11, 2017. Please fill out ballot and mail it back to the following address:

Orange County Section, American Chemical Society
P.O. Box 211
Placentia, CA 92871

If you do not receive the email or paper ballot, please contact us at or contact the Secretary, Dr. Beverly Matsuda, with Subject line "ACS ELECTION" to

OCACS organizes many activities through the year, such as frequent dinner meetings at which you can listen to a professional talk, and the National Chemistry Week program, High School Olympiads, and student awards ceremonies. To see a list of upcoming activities, click on the Calendar tab and read our Newsletter.

In 2015 the Section organized the 2015 ACS Western Regional Meeting at California State University San Marcos.

We invite you to become involved. Participating in our Section activities helps you to:
  • Meet and network with other chemists and chemical engineers
  • Enhance your professional development
  • Affect change in Orange County through outreach
  • Contribute to the public's understanding of chemistry

Open this poster to see how OCACS promotes a general awareness of chemistry in the wider community.

The American Chemical Society (ACS) is the largest scientific society in the world with over 160,000 members globally. ACS is one of the world's leading sources of authoritative scientific information, including the prestigious Journal of the American Chemical Society and the popular weekly C&EN magazine. In addition, the ACS organizes major international meetings and conducts many activities in every field of the chemical sciences all around the nation.

If you are interested in becoming a member of ACS, click here for more information. If you are already an ACS member and would like to join one of our Committees, please e-mail our Section Chair Dr. Sandra Thompson at or

Rabin Lai

Upcoming Events

Thursday, Oct 18 at 5:30 PM - 8:00 PM
Thursday, Nov 15 at 5:30 PM - 8:30 PM
Saturday, Mar 2 at 8:45 AM - 11:00 AM
Thursday, Mar 21 at 9:00 AM - 11:00 AM