Right now in the current version of Koha it looks like the itemtypes table assigns certain values to the loan length, the number of renewals allowed, and whether a rental charge applies for a given type of item, and then the categoryitem table assigns rental discounts, reserve charges, fines, first overdue reminder time periods, and loan periods based on the type of borrower. Are the later versions of Koha still going to use this protocol? It seems to parallel the type of filtering that our current commercial system uses to arrive at loan periods, but I'm wondering whether a particular loan period can be assigned at the item level, that is, to a particular book say, which overrides the loan period that would normally be assigned. We have been able to do this in our current system by setting a value in the "loan period" field at the item level, and we're wondering whether Koha also allows this to be done. Larry Currie -- Lawrence W. Currie User Services Librarian California Academy of Sciences Golden Gate Park San Francisco, CA 94118 lcurrie@calacademy.org (415) 750-7108 (415) 750-7106 fax http://www.calacademy.org/research/library/