Changes made by Council Regulation (EC, Euratom) No 858/2004 of 29 April 2004 determining the rates and conditions of the special allowances provided for in Article 56c of the Staff Regulations which may be granted to compensate for particularly arduous working conditions: Regulation (EEC) No 1799/72 of the Council of 18 August 1972 determining the rates and conditions of the special allowances provided for in Article 100 of the Staff Regulations which may be granted to compensate for particularly arduous working conditions