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New Standards for Environmental Diligence: What They Mean for Prospective Owners, Operators and Investors


Tuesday, February 7, 2023
12:00 p.m. - 1:00 p.m. PT
2:00 p.m. - 3:00 p.m. CT
3:00 p.m. - 4:00 p.m. ET
Complimentary Program via Webinar

*Webinar details will be sent upon registration.

Click here to register.

Property owners, lessees, investors and insurers will face a range of difficult questions and issues in the coming years, as important changes to Phase I Site Assessments (ESAs) go into effect. ASTM International Standard E1527-21 will be officially incorporated into federal regulations as a means of meeting the All Appropriate Inquiries (AAI) Rule on February 13, 2023, and will become the sole standard for AAI under federal regulations one year later.

Join us for a discussion of:

  • changes in Phase I ESA procedures and scope, and implications for commercial and industrial real estate transactions, including redevelopment and “brownfields” projects;
  • the expanded definition of “recognized environmental condition” to include “likely” contamination;
  • the addition of “emerging contaminants” as an official “non-scope” consideration, including naturally-occurring substances such as methane and synthetic chemicals such as PFAS;
  • strategies for preserving confidentiality during investigation;
  • managing costs and time requirements; and
  • how to determine the appropriate scope to support financing or insurance coverage and minimize risk.

The cost, sensitivity and scope of environmental diligence is changing; this webinar will help businesses prepare to negotiate those changes.


  • Nicholas van Aelstyn, Partner, Sheppard Mullin
  • E. Gail Suchman, Partner, Sheppard Mullin
  • Louise Dyble, Associate, Sheppard Mullin

This activity is approved for Minimum 1 Continuing Legal Education credit by the State Bar of California. Sheppard Mullin Richter & Hampton LLP certifies that this activity conforms to the standards for approved education activities prescribed by the rules and regulations of the State Bar of California governing minimum continuing legal education.

New York 
This program is approved in accordance with the requirements of the New York State Continuing Legal Education Board for a maximum of 1 credit hours which may be applied toward the Areas of Professional Practice requirement, and is suitable for both transitional and non-transitional attorneys.

Sheppard Mullin Richter & Hampton is an accredited sponsor, approved by the State Bar of Texas, Committee on MCLE.

This program is approved for Continuing Legal Education credit by the State Bar of Illinois.

*You must attend the full webinar to receive credit.

Additional Information
Click here for more information on Sheppard Mullin's Energy, Infrastructure and Project Finance team.

Questions? Please contact Lindsey Jacobson.

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