15. § 7 and § 19 of the Heath Regulations refer to the seafarer's doctor's Quality System. Which statement is correct? • All seafarer's doctors must have a quality system in place • A quality system is a special requirement that only seafarer's doctors are entitled to • The seafarer's doctor must be certified according to ISO 9001:2015 • It is optional for the seafarer's doctor to establish a quality system

The correct statement is: - All seafarer's doctors must have a quality system in place. § 7 and § 19 of the Health Regulations likely mandate that seafarer's doctors implement and maintain a quality system to ensure consistent, high-standard medical assessments. This ensures that the procedures and evaluations are reliable and meet regulatory requirements. However, the regulations do not specifically require certification like ISO 9001:2015 unless explicitly stated.