The 62nd ICID IEC Meeting and 21st International Congress on Irrigation and Drainage under the title of "Water Productivity towards Food Security", as well as, 8th International Micro Irrigation Congress on "Innovation in Technology and Management of Micro-irrigation for crop Production Enhancement" will be held in Tehran in 2011 by the Iranian National Committee on Irrigation and Drainage (IRNCID) and ICID. During the Congress, a Seminar, a Special Session, a Symposium, and certain Workshops are to be held. Therefore, all the interested participants and the honorable members of ICID, NC's and the other National and International Institutes, Entities, and Companies are welcome to exchange ideas, experiences, new technologies and innovations, as well as, share benefits from scientific aspects of the above events.