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1. The provisions of this Convention may be applied by or through national laws or regulations, collective agreements, arbitration awards or judicial decisions, or in any other appropriate manner consistent with national practice.
2. For the Members where the provisions of this Convention are matters normally left to agreements between employers or employers' organisations and workers' organisations, or are normally carried out otherwise than by law, compliance with those provisions shall be treated as effective if they are applied through such agreements or other means to the great majority of the workers concerned.