Be sure to watch the TRRA mandatory safety video and then complete the survey to have this on your TRRA record:
For safety procedures specific to the dragon boat CLICK HERE
Although not mandatory, this video on river traffic safety is informative for paddlers and essential for steerers.
To better understand your rowing friends and round out your boating knowledge, this US Rowing Safety Video is very informative. Much of the information can be adapted to the OC and dragon boat.
Before you decide to paddle, check the water temperature, flow, and safety zone matrix.