As Chief of the U.S. Army Corps of Engineers Regulatory Program, Mark oversaw the Corps’ responses to two monumental Supreme Court decisions impacting federal environmental permitting. The Court’s Rapanos and Northern Cook County decisions necessitated substantial federal permitting changes on Waters of the U.S. policy.  Mark’s department oversaw drafting of “significant nexus” guidance and policies from these decisions involving navigable waters and disputes on the definition of WOTUS.

Mark also served as Acting Director for the Operations and Regulatory Program at Corps Headquarters.  With a $300 billion portfolio covering all 38 Corps Civil Works Districts, Mark enabled national policy and budget decisions for water navigation, hydropower, recreation, and regulatory programs. While at the Corps, he also led development of the Mitigation and Monitoring Rule governing wetlands restoration in projects with wetlands impact.

Earlier in his career, Mark was Chief of Regulatory, USACE Los Angeles District.

Mark advises clients on permitting strategies informed by government and private sector experience navigating the Clean Water Act Section 404 permit processes.  His broad institutional knowledge of jurisdictional determinations provides an invaluable foundation for permitting efficiency in both cost and time.

With his extensive federal permitting expertise, Mark is a recognized authority on the National Environmental Policy Act (NEPA), including Environmental Impact Statements, Environmental Assessments, and Endangered Species Act regulations.

• Member, Society of Wetland Scientists

• Member, National Hazard Mitigation Association

• Upper Newport Bay Technical Advisory Committee

• Bolsa Chica Steering Committee, Bolsa Chica Restoration

• Member, Mitigation Banking Association

• Director of Environmental Policy at the Aerospace Industries Association

• US Navy Flight Officer – nearly 200 aircraft carrier landings