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Underwater Society of America

USOA is the sanctioning body for underwater sports in the USA. It is a charter member of the World Underwater Federation (CMAS).  As a member of CMAS, USOA sanctions yearly local, regional and national under water championships in skin diving, underwater hockey, underwater rugby, fin swimming and spearfishing.

USOA is a 501(c)(3) non-profit, tax-exempt corporation.  All donations made to USOA are tax deductible. 

Donation checks may be made payable to Underwater Society of America, Inc. and sent to:

     P.O. Box 2782
     Fremont, CA 94536

Donations via credit card or Paypal may be made by clicking on the Donate button below.


This is the new USOA website.  The new format will be more accessible for membership, event registration and information. Each club has their own page under the sport.  Dues and waivers for each club can also be collected here.  There is a need for a volunteer from each sport and club to oversee their information.  Please let us know what you think and what you would like to see. 

Member Discounts and Affiliates


USOA members are receive 20% off all FINIS merchandise. USOA also gets a donation with each purchase. Join now to enjoy the savings.

Good Search

Use the Good Search web search tool and they will donate a portion of the proceeds of any shopping you do to USOA.


Use AmazonSmile and a portion of your purchase is donated to the charity of your designation. A quarterly donation is made to USOA on your behalf.


DAN 5 Year Covid Study

DAN is looking for divers and freedivers who have recovered or are recovering from suspected or confirmed COVID-19 infection. – DAN conducting a five-year study on the effects of the virus on divers’ health and fitness to dive.
Here is an opportunity to participate in a long-term research study about COVID-19 infection and return to diving. The study is being entirely sponsored by DAN.
DAN aims to collect information from up to 1,000 adult divers with confirmed or suspected COVID-19 infection, document recovery time and severity of the acute phase of their infection, and document diving practices and medical issues/health problems possibly encountered while diving after recovery from the disease.
The initial survey will take 15-20 minutes to complete. You will be contacted periodically by DAN over the next 5 years to follow- up on your diving career and possible medical issues.
You qualify for this study, if have/had a confirmed or suspected COVID-19 infection. If you decide to participate, you will receive a series of up to nine online surveys over the course of the next 5 years at various times with regards to dates, symptoms, and practices during your infection, recovery, and return to diving.

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