regulatory side first and then presentations by people who are students of animal welfare/animal behavior as well as pain physiology. The latter part of the program will involve people who will build on the foregoing presentation and will propose language and definitions for possible use in policies and in regulations.

In 1992, ILAR published a report titled Recognition and Alleviation of Pain and Distress in Laboratory Animals (NRC 1992). Other questions we should address today are the following:

• Are the principles and definitions articulated in that report still current?

• Can they be used by practitioners and by researchers to evaluate and treat pain and distress in the laboratory animals they are using?

• Are the principles and the language in that report clear (unambiguous) enough for the USD A to use in their policies and regulations?

If not, then one of the tasks of ILAR will be to set up a committee to revise that report for consistency with modern and current thinking. That matter is another aspect of today's workshop.

I would now like to introduce Dr. Ron DeHaven, who is well known to everyone in the room. Dr. DeHaven is Deputy Administrator of Animal Care for USDA/APHIS.

NRC [National Research Council]. 1992. Recognition and Alleviation of Pain and Distress in Laboratory Animals . Washington, D.C.: National Academy Press.