# Virginia HB507: Data centers; permit requirements, emission limits for certain engine-generator sets.

Virginia HB507, Data centers; permit requirements, emission limits for certain engine-generator sets., is a 2026 Regular Session House bill sponsored by John Chilton McAuliff (Democratic); status signed, last action 2026-04-08 (Acts of Assembly Chapter text (CHAP0397)) (as of 2026-10-12).

- Canonical: https://policyrisk.com/state-bill/VA-HB507-2026
- As of: 2026-10-12
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Bill: Virginia HB507
- State: Virginia
- Session: 2026 Regular Session
- Title: Data centers; permit requirements, emission limits for certain engine-generator sets.
- Status: signed
- Chamber: House
- Introduced: 2026-01-12
- Last action: 2026-04-08, Acts of Assembly Chapter text (CHAP0397)
- Sponsor: John Chilton McAuliff (Democratic)
- Cosponsors: 0
- Touches household money: no
- Roll calls: 8 (158 yes, 63 no in all)
- Economic provisions PRIA read: 1

## 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.

## Bill overview: provisions PRIA read

- Cleaner backup generators at Virginia data centers: benefit, low. 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 mea…

## Sponsors and cosponsors

- Sponsor: John Chilton McAuliff (Democratic), House

## Roll call votes

| Date | Chamber | Motion | Result | Yes | No | Other |
| --- | --- | --- | --- | --- | --- | --- |
| 2026-03-10 | Senate | Passed Senate | pass | 25 | 15 |   |
| 2026-03-06 | Senate | Passed by for the day Block Vote (Voice Vote) | pass | 0 | 0 |   |
| 2026-03-05 | Senate | Constitutional reading dispensed Block Vote (on 2nd reading) | pass | 39 | 0 |   |
| 2026-03-05 | Senate | Passed by for the day Block Vote (Voice Vote) | pass | 0 | 0 |   |
| 2026-03-03 | Senate | Reported from Agriculture, Conservation and Natural Resources | pass | 10 | 5 |   |
| 2026-02-17 | House | Read third time and passed House | pass | 61 | 34 |   |
| 2026-02-11 | House | Subcommittee recommends reporting with substitute | pass | 7 | 3 |   |
| 2026-02-11 | House | Reported from Agriculture, Chesapeake and Natural Resources with substitute | pass | 16 | 6 |   |

## Actions (33)

- 2026-04-08: Acts of Assembly Chapter text (CHAP0397) (Governor)
- 2026-04-08: Approved by Governor-Chapter 397 (effective 7/1/2026) (Governor)
- 2026-04-01: Fiscal Impact Statement from Department of Planning and Budget (HB507) (House)
- 2026-03-31: Governor's Action Deadline 11:59 p.m., April 13, 2026 (Governor)
- 2026-03-31: Enrolled Bill communicated to Governor on March 31, 2026 (House)
- 2026-03-31: Signed by Speaker (House)
- 2026-03-30: Bill text as passed House and Senate (HB507ER) (House)
- 2026-03-30: Enrolled (House)
- 2026-03-30: Signed by President (Senate)
- 2026-03-10: Passed Senate (25-Y 15-N 0-A) (Senate)
- 2026-03-10: Read third time (Senate)
- 2026-03-09: Passed by for the day (Senate)
- 2026-03-06: Passed by for the day Block Vote (Voice Vote) (Senate)
- 2026-03-05: Passed by for the day Block Vote (Voice Vote) (Senate)
- 2026-03-05: Constitutional reading dispensed Block Vote (on 2nd reading) (39-Y 0-N 0-A) (Senate)
- 2026-03-05: Rules suspended (Senate)
- 2026-03-03: Reported from Agriculture, Conservation and Natural Resources (10-Y 5-N) (Senate)
- 2026-02-18: Referred to Committee on Agriculture, Conservation and Natural Resources (Senate)
- 2026-02-18: Constitutional reading dispensed (on 1st reading) (Senate)
- 2026-02-17: Read third time and passed House (61-Y 34-N 0-A) (House)
- 2026-02-16: Engrossed by House - committee substitute (House)
- 2026-02-16: committee substitute agreed to (House)
- 2026-02-16: Read second time (House)
- 2026-02-16: Fiscal Impact Statement from Department of Planning and Budget (HB507) (House)
- 2026-02-13: Read first time (House)
- 2026-02-11: Committee substitute printed 26107698D-H1 (House)
- 2026-02-11: Reported from Agriculture, Chesapeake and Natural Resources with substitute (16-Y 6-N) (House)
- 2026-02-11: House subcommittee offered (House)
- 2026-02-11: Subcommittee recommends reporting with substitute (7-Y 3-N) (House)
- 2026-02-09: Fiscal Impact Statement from Department of Planning and Budget (HB507) (House)
- 2026-02-09: Assigned HACNR sub: Natural Resources (House)
- 2026-01-12: Referred to Committee on Agriculture, Chesapeake and Natural Resources (House)
- 2026-01-12: Prefiled and ordered printed; Offered 01-14-2026 26104969D (House)

## Bill text

- Chaptered, 2026-04-08: [HTML](https://lis.blob.core.windows.net/files/1217631.HTML), [PDF](https://lis.blob.core.windows.net/files/1217630.PDF)
- Enrolled, 2026-03-30: [HTML](https://lis.blob.core.windows.net/files/1210695.HTML), [PDF](https://lis.blob.core.windows.net/files/1210694.PDF)
- Substitute, 2026-02-11: [HTML](https://lis.blob.core.windows.net/files/1142418.HTML), [HTML](https://lis.blob.core.windows.net/files/1141275.HTML), [HTML](https://lis.blob.core.windows.net/files/1139454.HTML), [PDF](https://lis.blob.core.windows.net/files/1142417.PDF), [PDF](https://lis.blob.core.windows.net/files/1139453.PDF), [PDF](https://lis.blob.core.windows.net/files/1141274.PDF)
- Introduced, 2026-01-12: [HTML](https://lis.blob.core.windows.net/files/1084725.HTML), [PDF](https://lis.blob.core.windows.net/files/1084724.PDF)

## Related bills

- HB5: Employment; paid sick leave, civil penalties. (signed)
- SB199: Employment; paid sick leave, civil penalties. (signed)
- HB95: Va. Residential Landlord and Tenant Act; landlord remedies, noncompliance with rental agreement. (signed)
- HB1393: Electric utilities; pilot program for energy assistance and weatherization for certain individuals. (signed)
- HB834: Virginia Residential Landlord and Tenant Act; fire or casualty damage, termination by landlord. (signed)
- HB675: Protection of employees; coercion or threat based on immigration status, civil penalty. (signed)

## Sources
- [Chaptered (HTML)](https://lis.blob.core.windows.net/files/1217631.HTML)
- [Chaptered (PDF)](https://lis.blob.core.windows.net/files/1217630.PDF)
- [Enrolled (HTML)](https://lis.blob.core.windows.net/files/1210695.HTML)
- [Enrolled (PDF)](https://lis.blob.core.windows.net/files/1210694.PDF)
- [Substitute (HTML)](https://lis.blob.core.windows.net/files/1142418.HTML)
- [Substitute (HTML)](https://lis.blob.core.windows.net/files/1141275.HTML)
- [Substitute (HTML)](https://lis.blob.core.windows.net/files/1139454.HTML)
- [Substitute (PDF)](https://lis.blob.core.windows.net/files/1142417.PDF)
- [Substitute (PDF)](https://lis.blob.core.windows.net/files/1139453.PDF)
- [Substitute (PDF)](https://lis.blob.core.windows.net/files/1141274.PDF)
- [Introduced (HTML)](https://lis.blob.core.windows.net/files/1084725.HTML)
- [Introduced (PDF)](https://lis.blob.core.windows.net/files/1084724.PDF)

## Related
- [HB5: Employment; paid sick leave, civil penalties.](https://policyrisk.com/state-bill/VA-HB5-2026)
- [SB199: Employment; paid sick leave, civil penalties.](https://policyrisk.com/state-bill/VA-SB199-2026)
- [HB95: Va. Residential Landlord and Tenant Act; landlord remedies, noncompliance with…](https://policyrisk.com/state-bill/VA-HB95-2026)
- [HB1393: Electric utilities; pilot program for energy assistance and weatherization for…](https://policyrisk.com/state-bill/VA-HB1393-2026)
- [HB834: Virginia Residential Landlord and Tenant Act; fire or casualty damage, terminat…](https://policyrisk.com/state-bill/VA-HB834-2026)
- [HB675: Protection of employees; coercion or threat based on immigration status, civil…](https://policyrisk.com/state-bill/VA-HB675-2026)
- [Virginia bills](https://policyrisk.com/states/virginia/bills)
- [Virginia state hub](https://policyrisk.com/states/virginia)
- [All state legislation](https://policyrisk.com/state-bills)

Source: PRIA, https://policyrisk.com/state-bill/VA-HB507-2026 (as of 2026-10-12).