Massachusetts Academy of Trial Attorneys The Association of Trial Lawyers of America International Association of Defense Counsel.

Hampden County, Massachusetts and American Bar Associations Coalition of Food Industry Counsel Defense Research Institute.

Hampden County and Massachusetts Bar Associations The Association of Trial Lawyers of America Massachusetts Academy of Trial Attorneys Defense Research Institute.

Hampden County Secretary, 1998-1999 and Executive Committee 1999-2000 and Massachusetts Bar Associations The Association of Trial Lawyers of America Massachusetts Academy of Trial Attorneys.

Boston Member, Environmental Law Section, Hampden County, Hampshire County and Massachusetts Member, Environmental/Land Use Committee Bar Associations Massachusetts and American Public Health Associations.

Hamden County, Hampshire County and Massachusetts Bar Associations Massachusetts Academy of Trial Lawyers.

Hampden County and Massachusetts Bar Association.

Boston, Massachusetts and American Bar Associations The Association of Trial Lawyers of America Massachusetts Academy of Trial Lawyers.

Massachusetts Bar Association Massachusetts Academy of Trial Attorneys Massachusetts Defense Lawyers Association Defense Research Institute.

Massachusetts Bar Association Massachusetts Academy of Trial Attorneys Member, Board of Governors Chairman, Committee on Joint and Several Liability, 1988-1998 The Association of Trial Lawyers of America Past Chairman, Computer Vendor Liability Liti