VirginiaHB5072026 Regular SessionHouse

Data centers; permit requirements, emission limits for certain engine-generator sets.

Sponsored By: John Chilton McAuliff (Democratic)

Became Law

Summary

Permit requirements for data centers; emission limits for certain engine-generator sets. Prohibits the Department of Environmental Quality from issuing an air permit for any application submitted for a data center on or after July 1, 2026, unless the emission limit for each engine-generator, defined in the bill, established by such permit is equal to or less than the emissions achieved by a Tier 4 equivalent engine-generator.

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Bill Overview

Analyzed Economic Effects

1 provisions identified: 1 benefits, 0 costs, 0 mixed.

Cleaner backup generators at Virginia data centers

Beginning July 1, 2026, DEQ will not issue a data center air permit unless each backup generator meets Tier 4‑equivalent pollution limits. This applies to applications filed on or after that date, and to both general and individual permits. The limit is set for each generator. Tier 4‑equivalent means advanced controls for NOx, carbon monoxide, and particle pollution. DEQ may set even stricter limits using best‑available and federal performance standards (BACT, LAER, RACT, NSPS, NESHAP).

Sponsors & Cosponsors

Sponsor

  • John Chilton McAuliff

    Democratic • House

Cosponsors

There are no cosponsors for this bill.

Roll Call Votes

All Roll Calls

Yes: 158 • No: 63

Senate vote 3/10/2026

Passed Senate

Yes: 25 • No: 15

Senate vote 3/5/2026

Constitutional reading dispensed Block Vote (on 2nd reading)

Yes: 39 • No: 0

Senate vote 3/5/2026

Passed by for the day Block Vote (Voice Vote)

Yes: 0 • No: 0

Senate vote 3/3/2026

Reported from Agriculture, Conservation and Natural Resources

Yes: 10 • No: 5

House vote 2/17/2026

Read third time and passed House

Yes: 61 • No: 34

House vote 2/11/2026

Subcommittee recommends reporting with substitute

Yes: 7 • No: 3

House vote 2/11/2026

Reported from Agriculture, Chesapeake and Natural Resources with substitute

Yes: 16 • No: 6

Actions Timeline

  1. Acts of Assembly Chapter text (CHAP0397)

    4/8/2026Governor
  2. Approved by Governor-Chapter 397 (effective 7/1/2026)

    4/8/2026Governor
  3. Fiscal Impact Statement from Department of Planning and Budget (HB507)

    4/1/2026House
  4. Governor's Action Deadline 11:59 p.m., April 13, 2026

    3/31/2026Governor
  5. Enrolled Bill communicated to Governor on March 31, 2026

    3/31/2026House
  6. Signed by Speaker

    3/31/2026House
  7. Bill text as passed House and Senate (HB507ER)

    3/30/2026House
  8. Enrolled

    3/30/2026House
  9. Signed by President

    3/30/2026Senate
  10. Passed Senate (25-Y 15-N 0-A)

    3/10/2026Senate
  11. Read third time

    3/10/2026Senate
  12. Passed by for the day

    3/9/2026Senate
  13. Passed by for the day Block Vote (Voice Vote)

    3/6/2026Senate
  14. Passed by for the day Block Vote (Voice Vote)

    3/5/2026Senate
  15. Constitutional reading dispensed Block Vote (on 2nd reading) (39-Y 0-N 0-A)

    3/5/2026Senate
  16. Rules suspended

    3/5/2026Senate
  17. Reported from Agriculture, Conservation and Natural Resources (10-Y 5-N)

    3/3/2026Senate
  18. Referred to Committee on Agriculture, Conservation and Natural Resources

    2/18/2026Senate
  19. Constitutional reading dispensed (on 1st reading)

    2/18/2026Senate
  20. Read third time and passed House (61-Y 34-N 0-A)

    2/17/2026House
  21. Engrossed by House - committee substitute

    2/16/2026House
  22. committee substitute agreed to

    2/16/2026House
  23. Read second time

    2/16/2026House
  24. Fiscal Impact Statement from Department of Planning and Budget (HB507)

    2/16/2026House
  25. Read first time

    2/13/2026House

Bill Text

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