If the site's users respond well to the test run, the new restrictions will apply to all entries for living people. That's according to Jay Walsh, a spokesman for Wikimedia Foundation, which runs the site.
The idea is to block the kind of high-profile vandalism that has marred the pages of some famous people.
Wikipedia doesn't want to discourage legitimate editing, though. The criteria for "experienced editor" status is low. Walsh says users who are registered for a few days can give changes the OK.