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National Environmental Policy Act (NEPA)

The acronym NEPA against a blue sky with a healthy tree.
Credit: Andrew Kim/NIST/Adobe Stock

Final Programmatic Environmental Assessment

CHIPS for America is announcing the availability of the Final Programmatic Environmental Assessment (PEA) and finding of no significant impact (FONSI) for the modernization and expansion of existing semiconductor fabrication facilities under the CHIPS Incentives Program.  The Final PEA addresses federal financial assistance under the CHIPS Incentives Program for the proposed modernization or expansion of existing current-generation, mature-node, or leading-edge front- or back-end commercial semiconductor fabrication facilities within existing facility footprints.

Please send any questions to CHIPSNEPA [at] chips.gov (CHIPSNEPA[at]chips[dot]gov).

Draft Environmental Assessment for TSMC Arizona Available for Public Review and Comment 

CPO HAS EXTENDED THE PUBLIC COMMENT PERIOD AND WILL BE ACCEPTING COMMENTS ON THE DRAFT ENVIRONMENTAL ASSESSMENT THROUGH JULY 12, 2024.

The CHIPS Program Office (CPO) announces the availability of the draft Environmental Assessment (EA) for TSMC Arizona under the National Environmental Policy Act (NEPA) for public comment. The draft EA addresses the environmental effects of providing financial incentives for the purchase and installation of semiconductor manufacturing equipment across three semiconductor fabrication facilities at the TSMC Arizona site in Phoenix, Arizona. 

CPO has extended the public comment period and will be accepting comments on the draft EA through July 12, 2024. Please submit your comments via email to CHIPSNEPA [at] chips.gov (CHIPSNEPA[at]chips[dot]gov) with the subject line “TSMC AZ Draft EA”. 

All comments received are a part of the public record. Personal identifying information (e.g., name, address, etc.), confidential business information, or otherwise sensitive information submitted voluntarily by the sender may be publicly accessible. Anonymous comments may be submitted.

  • To View the Full Environmental Assessment Draft, Click Here

  • To View the Appendices for the Environmental Assessment Draft, Click Here

NEPA Process for Applicants

To ensure an efficient and effective environmental review process under NEPA, applicants are strongly encouraged to familiarize themselves with NEPA and ensure that their project teams have the necessary NEPA expertise, which could include hiring companies or consultants that specialize in NEPA. The CHIPS Program Office (CPO) will require extensive cooperation from applicants throughout the NEPA process.

After reviewing the application information, the CHIPS environmental team engages in discussions with the applicant to:

  • Fully understand the scope and siting of the project and obtain any missing or incomplete environmental information as required in the application
  • Identify the appropriate level of environmental review as described above (i.e., CE, EA, or EIS)
  • Identify other federal agency involvement in the project and relevant permits, consultations, and/or approvals that may be applicable (e.g., Clean Water Act - Section 404 wetland permits; Clean Air Act – Title V air emission permits; Consultations and Approvals pursuant to Section 7 of the Endangered Species Act, or Section 106 of the National Historic Preservation Act)
  • Explain that if the level of environmental review will be an EA or an EIS, CPO will notify the State NEPA Clearinghouse point of contact – as well as potentially interested, federally recognized Native American tribes of CPO federal action – and will engage with states and tribes in the NEPA process
  • Advise applicants that incomplete or insufficient information can prolong the environmental review process

NEPA Resources for CHIPS Applicants

NEPA Public Involvement

CHIPS NEPA-related documents and notices, including draft EAs and EISs posted for public comment, and notices of public meetings, will be added to this website as they become available.

Created October 6, 2023, Updated June 28, 2024