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The first guidelines tor protected area management categorIes prepared by IUCN on 1978, consists of 8 main categories. This guidelines practiced for more than a decade in different countries and they tried to make consistency between their protected areas and characteristics, management objectives and selection criteia of 1978 guidelines.
IUCN commenced studies to revise the guidelines since 1984 and represented a new one on 1994. These modifications are on the basis of following issues:
1. Practicing the 1978 guidelines revealed its limitations: (a) Some
of the protected areas had intermediate characterIstics am were not possible to identify a particular category for them. (b: Title and management objectives of some of the categorie_
in the
gmdelmes. These Issues mclUoe: DlOlogicai Ulvt:rsny, SUSLdlIldUlI
development



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guidelines), and
3. Wildlife Refuge (equivalent to category IV of IUCN
guid_lines ). The fourth category of national system called as "Preserved Area" is not equivalent with any category of the new guidelines.
In this article recommendations have given to resolve the problems arise for applying IUCN new guidelines in national level and advantages are discussed. It is recommended to increase the sanctum (Core Area) of "Preserved Areas" from 1/5th to 2/1 rd of total area of the "Preserved Area". As a result of this modification the Preserved Area" of national system would become equivalent to Vph IUCN category. Explicitly, it is not possible to establish any area of the Vth category of IUCN guidelines in Iran. However there are still wilderness areas in Iran that can be selected as pt
category of IUCN guidelines. Selecting new areas for this category is a significant attempt to complete the network of Protected areas in Iran