9. Legislation on copyright and industrial property.
10. Customs and tariff regulations; foreign trade.
11. Monetary system: foreign currency, exchange and convertibility; bases for the regulations concerning credit, banking and insurance.
12. Legislation on weights and measures and determination of the official time.
13. Basic rules and coordination of general economic planning.
14. General financial affairs and State Debt.
15. Promotion and general coordination of scientific and technical research.
16. External health measures; basic conditions and general coordination of health matters; legislation on pharmaceutical products.
17. Basic legislation and financial system of Social Security, without prejudice to implementation of its services by the Self-governing Communities.
18. Basic rules of the legal system of Public Administrations and the status of their officials which shall, in any case, guarantee that all persons under said administrations will receive equal treatment; the common administrative procedure, without prejudice to the special features of the Self-governing Communities' own organizations; legislation on compulsory expropriation; basic legislation on contracts and administrative concessions and the system of liability of all Public Administrations.
19. Sea fishing, without prejudice to the powers which, in regulations governing this sector, may be vested to the Self-governing Communities.
20. Merchant navy and registering of ships; lighting of coasts and signals at sea; generalinterest ports; general-interest airports; con-