On February 1, 2013 the Federal Tax Administrative Assistance Act entered into force in order to implement new exchange of information provisions included in tax treaties to accommodate concerns of the OECD. The new federal law replaces the Ordinance on Administrative Assistance which came into force in 2010. The new law confirms that group requests are admissible, however only for information on issues which concern the time after February 1, 2013. Swiss authorities have now the power to limit procedural rights of concerned parties. Swiss authorities may, however, not transmit information that is not foreseeably relevant (such as names of third parties).