representatives of the European Commission, two representatives of the European Parliament, two representatives of patients' organisations, one representative of doctors' organisations and one representative of veterinarians' organisations. The Agency decentralises its scientific assessment of medicines by working through a network of about 4500 experts throughout the EU. The EMA draws on resources of over 40 National Competent Authorities (NCAs) of EU Member states. Committees Medicinal products for human use A single evaluation is carried out through the Committee for Medicinal Products for Human Use (CHMP). If the Committee concludes that the quality, safety and efficacy of the medicinal product is sufficiently proven, it adopts a positive opinion. This is sent to the European Commission to be transformed into a marketing authorisation valid for the whole of the EU. A special type of approval is the paediatric-use marketing authorisation (PUMA), which can be granted for medical products intended exclusively for paediatric use. The CHMP is obliged by the regulation to reach decisions within 210 days, though the clock is stopped if it is necessary to ask the applicant for clarification or further supporting data. Medicinal products for veterinary use The Committee for Medicinal Products for Veterinary Use (CVMP) operates in analogy to the CHMP as described above. Orphan medicinal products The Committee on Orphan Medicinal Products (COMP) administers the granting of orphan drug status since 2000. Companies intending to develop medicinal products for the diagnosis, prevention or treatment of life-threatening or very serious conditions that affect not more than five in 10,000 persons in the European Union can apply for 'orphan medicinal product designation'. The COMP evaluates the application and makes a recommendation for the designation which is then granted by the European Commission. Herbal medicinal products The Committee on Herbal Medicinal Products (HMPC) assists the harmonisation of procedures and provisions concerning herbal medicinal products laid down in EU Member States, and further integrating herbal medicinal products in the European regulatory framework since 2004. Paediatry The Paediatric Committee (PDCO) deals with the implementation of the paediatric legislation in Europe Regulation (EC) No 1901/2006 since 2007. Under this legislation, all applications for marketing authorisation of new medicinal products, or variations to existing authorisations, have to either include data from paediatric studies previously agreed with the PDCO, or obtain a PDCO waiver or a deferral of these studies. Advanced therapies The Committee for Advanced Therapies (CAT) was established in accordance with Regulation (EC)