Article 2 of the European Social Charter (Revised) (Strasbourg 1996) provides: With a view to ensuring the effective exercise of the right to just conditions of work, the Parties undertake: 1) to provide for reasonable daily and weekly working hours, the working week to be progressively reduced to the extent that the increase of productivity and other relevant factors permit; 2) to provide for public holidays with pay; 3) to provide for a minimum of four weeks' annual holiday with pay; 4) to eliminate risks in inherently dangerous or unhealthy occupations, and where it has not yet been possible to eliminate or reduce sufficiently these risks, to provide for either a reduction of working hours or additional paid holidays for workers engaged in such occupations; 5) to ensure a weekly rest period which shall, as far as possible, coincide with the day recognised by tradition or custom in the country or region concerned as a day of rest; 6) to ensure that workers are informed in written form, as soon as possible, and in any event not later than two months after the date of commencing their employment, of the essential aspects of the contract or employment relationship; and 7) to ensure that workers performing night work benefit from measures which take account of the special nature of the work.