… Safety Instruction (WSI). It is an aquatic certification for individuals who are seeking a career in aquatics. Specific occupations include lifeguarding, pool management, and teaching aquatic courses. Aquatic Specialist Certificate FAQs … a total of 12 units. With a part-time schedule it will take approximately 2 years to complete. A few classes are offered online, or in winter/summer. What are the requirements to become an aquatic specialist? American Red Cross Lifeguarding …