An effective Emergency Assistance Plan (EAP) is crucial for scuba divers to handle emergencies safely. The plan should identify potential emergencies like decompression sickness and have key details, including emergency contacts and evacuation procedures. Training is vital, so divers should learn first aid and oxygen administration through courses like PADI Emergency First Response. Regular drills and updates to the EAP will enhance readiness, allowing divers to respond promptly and confidently to any situation while exploring underwater.