This appears to be a first. Berkeley City Council is about to amend its hazardous materials law to compel researchers and manufacturers to report what nanotechnology materials they are working with and how they are handling the tiny particles.
The issue of establishing regulations to monitor the activities of startups and small business in Berkeley had a preliminary introduction at Council on December 5th. The Berkeley Council gave their unanimous support at this meeting. You can read more about this in a report from PhysOrg.com.