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Jetta Cook is an environmental lawyer with an emphasis on complex regulatory issues. This includes providing regulatory and litigation assistance for a number of state and federal environmental laws and regulations.

As a member of Jones Day's environmental, health & safety team, Jetta focuses a significant portion of her practice on environmental disputes, environmental litigation and regulatory enforcement proceedings, assists clients in securing permits and other regulatory approvals for their operations and projects, and provides compliance counseling and due diligence/transactional support.


  • Financial institutions analyze obligations under Voluntary Carbon Market Disclosures ActJones Day advised financial institutions regarding obligations under the Voluntary Carbon Market Disclosures Act (VCMDA) and on proposed website disclosure.
  • NACCO Industries drafts comments on grid reliability in response to EPA's supplemental noticeJones Day assisted NACCO Industries in drafting electric grid reliability comments on supplemental notice by EPA concerning greenhouse gas (GHG) emission standards for power plants.