Life jackets are essential at all times. According to the Association of Marine Industries (AMI), located on the Eastern End of Long Island, "Over 82 percent of those killed in boating accidents in recent years were not wearing life jackets."
According to the Coast Guard, "It is illegal to operate a boat while under the influence of alcohol or drugs in every state. The Coast Guard also enforces a federal law that prohibits BUI. This law pertains to all boats (from canoes and rowboats to the largest ships)."
Towboats and barges approaching bridges or locks must be committed to their approach well in advance, so it's dangerous and difficult for them to change course. Stay out of their way.
The AMI advises to "watch for ship, tug or towboat lighting at night-don't rely on trying to hear a vessel approaching. Pay attention to the sidelights of tugs and tows, rather than the masthead lights" because if you see both sidelights (red and green), you're in the path of danger.
Operating in adverse weather or low visibility can be deadly. Check the weather before embarking and head out on a clear day only.
Ships, towboats and tugboats use VHF radio channels 13 and 16. If you are unsure of your situation, or their intentions, contact them or the Coast Guard.