ASTM Training
David Vieau and Sean Leary are two of only a handful of professionals engaged by ASTM as national instructors of the Standards for Phase I and Phase II environmental site assessments.
![](/sites/default/files/2024-05/Leary%2CSean_2024.jpg)
Sean Leary
ASTM Training Professional
Sean Leary, representing the new generation of environmental professionals, has been teaching for ASTM for the past five years. Prior to joining ASTM as a formal instructor, Sean was frequently called upon by lenders for training and policy development. As a leader in the industry, Sean is often recognized as the up-and-coming influencer in the business of environmental due diligence.
Formal training on the ASTM Standards for environmental assessments is regularly offered through the
ASTM Technical and Professional Training site.