When adopting EU Directive 93/104/EC, of 23 November 1993, concerning the organization of working time, the Council excluded sea transport from its scope because of the specific nature of the work (particularly long hours of work at sea). The bulk of the existing measures in the field of maritime transport are derived from international standards adopted by the International Maritime  organization (IMO) and the International Labour  organization (ILO). In 1995 the IMO adopted a revised International Convention on Standards of Training, Certification and Watch-keeping for Seafarers (STCW Convention), which notably provides for: (1) minimum daily rest periods of ten hours every 24 hours, which cannot be split into more than two periods, and including one consecutive six-hour period at least; (2) Weekly rest time of at least 70 hours. Likewise, in 1996 the ILO adopted the Seafarers’ Hours of Work and the Manning of Ships Convention, 1996 (No. 180), and the 1996 Protocol to the Merchant Shipping (Minimum Standards) Convention, 1976 (No. 147). Enforcement of the provisions contained in ILO Convention No. 180 is monitored on the basis of a table with the shipboard working arrangements; seafarers’ records of hours of work and hours of rest; and the physical state of the seafarers (excessive fatigue as a result of excessive working hours). At the European level, the Council has adopted Directive 1999/63/EC of 21 June 1999, giving effect to the agreement between the European Shipowners’ Association (ECSA) and the Federation of European Transport Workers’ Trade Unions (FETT) signed on 30 September 1998. This agreement concerns seafarers’ hours of work on board ships flying a flag of a Member State of the European Union. See: Consolidated maritime labour Convention; Working time of seafarers