Article 21 of the European Social Charter (Revised) (Strasbourg 1996) provides: With a view to ensuring the effective exercise of the right of workers to be informed and consulted within the undertaking, the Parties undertake to adopt or encourage measures enabling workers or their representatives, in accordance with national legislation and practice: a) to be informed regularly or at the appropriate time and in a comprehensible way about the economic and financial situation of the undertaking employing them, on the understanding that the disclosure of certain information which could be prejudicial to the undertaking may be refused or subject to confidentiality; and b) to be consulted in good time on proposed decisions which could substantially affect the interests of workers, particularly on those decisions which could have an important impact on the employment situation in the undertaking.