Equipment category and Authorization (4.6C)

Hi,

The Business requires us to control IE01/IE02 by "Equipment category" types. Already taalked to security folks. But looks like there is no authorization object to control by "Equipment category". There is only one field "EQTYP" but that is not related to any of the Authorization Objects. How do we take care of this? We don't want the users to change or create all the equipment types. Thanks for all the suggestions.

Cheers