Regulated Medical Waste - Islip, NY - June, 1992 - For the National Laboratory Training Alliance.

Medical Waste Management - Chiang Mai, Thailand - May 22-26, 1995 - For the United States Environmental Training Institute.

Clinical Waste Management - Hong Kong, China - August 12, 1999 - Hospital Authority of Hong Kong

Management of Wastes from Health - Care Activities - Santiago, Chile - Aug. 3-4, 2000 - Ministry of Environment of Chile

Medical Waste Management Texas Style - Austin, TX - March 7-8, 2002 - Texas Department of Health

Medical Waste Management - Updates - Austin, TX - March 17, 2006, Texas Department of Health

A Regulator's Perspective on Regulated Medical Waste - Baltimore, MD - Sept., 1997 - For the International Biomedical Waste Science Society - Johns Hopkins.

Alternative Methods for the Treatment of Clinical Waste: An American Perspective - Tokyo, Japan - February, 1999 - As part of a symposium on clinical waste sponsored by the Japanese Ministry of Health.

New Technologies in Hospital Waste Disposal - Hong Kong, China - August, 1999 - As part of the Int. Congress of the Asia Pacific Society of Infection Control

Regulatory Oversight of Clinical Waste Management: United State Perspective - Hong Kong, China - Oct., 2000 - As part of the ISWA Int. Sym. On Waste Management in Asian Cities

Clincal Waste Regulations: An International Perspective - Valletta, Malta - January, 2001- As part of a seminar on Clinical Waste by the Ministry of Health of Malta

Alternative Methods for the Treatment of Medical Waste - Okayama, Japan - December, 2001 - As part of the 1st Annual Meeting of the Pacific Basis Consortium on Hazardous Substances.

Medical Waste - Alternatives to Incineration - St. Lucia - June, 2002 - As part of a project for the Organization of Eastern Caribbean States.

Occupational and Public Health Risks Associated with Medical Waste - Istanbul, Turkey - July, 2002 - As part of the International Conference on Hazardous Substances

Medical Waste Treatment Technologies - Malta, November, 2003 - As part of the International Federation on Infection Control meeting.

Bioterrorism and Treatment of Waste - Treatment of Medical Waste - March, 2004 - Series of lectures in Shanghai and Beijing China

Recent Trends in Technologies for Treatment and Disposal of Health Care Waste - Tokyo and Okayama, Japan, February, 2005 - International Workshop on Futuristic Strategies for Healthcare Waste Management (Tokyo) and Seminar on Vital Issues on Waste Management (Okayama)