# 119-s-3531: A bill to amend the Internal Revenue Code of 1986 to establish a tax credit for qualified combined heat and power system property, and for other purposes.

119-s-3531, A bill to amend the Internal Revenue Code of 1986 to establish a tax credit for qualified combined heat and power system property, and for other purposes., is a 119th Congress bill sponsored by Sen. Blackburn, Marsha [R-TN] (R-TN); status introduced; PRIA reads it as touching household money (as of 2026-04-21).

- Canonical: https://policyrisk.com/legislation/119-s-3531
- As of: 2026-04-21
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Bill: 119-s-3531
- Congress: 119
- Title: A bill to amend the Internal Revenue Code of 1986 to establish a tax credit for qualified combined heat and power system property, and for other purposes.
- Status: introduced
- Introduced: 2025-12-17
- Sponsor: Sen. Blackburn, Marsha [R-TN] (R-TN)
- Cosponsors: 0
- Policy area: Taxation
- Touches household money: yes
- Last recorded action: 2026-04-21

## Summary

**new federal tax credit** for combined heat and power (CHP) systems. This bill would create a 10 percent investment credit for qualified CHP property and allow two separate 10 percentage point boosts for projects that meet domestic content rules or that are placed in energy communities. - Owners of qualifying CHP systems could claim a 10 percent credit on the system's basis. The credit excludes amounts tied to qualified rehabilitation expenditures and applies to systems whose construction begins after December 31, 2024. - Projects that meet domestic content requirements would get a +10 percentage point bonus to the credit. Projects located in an energy community would get an additional +10 percentage point boost. - CHP systems must meet performance rules, including an energy efficiency above 60 percent, and very large systems are barred from the credit. Systems over 50 megawatts are not eligible.

## Provisions PRIA read

- New CHP tax credit for businesses: benefit, high. If enacted, businesses that put combined heat and power (CHP) systems in service after December 31, 2024, would be able to claim a federal investment tax credit. The base credit would be 10% of the system's eligible tax basis. Projects meeting domestic content rules would get an extra 10 percentage…

## Related bills

- 119-s-4744: Take Care of America’s Veterans Act
- 119-s-3597: National Quantum Initiative Reauthorization Act of 2026
- 119-s-2142: GOLDEN DOME Act of 2025
- 119-s-2438: Transformation to Competitive Integrated Employment Act
- 119-s-4952: Protecting American Taxpayers Act
- 119-s-1748: Kids Online Safety Act

## Sources
- [119-s-3531 on Congress.gov](https://www.congress.gov/bill/119th-congress/senate-bill/3531)

## Related
- [119-s-4744: Take Care of America’s Veterans Act](https://policyrisk.com/legislation/119-s-4744)
- [119-s-3597: National Quantum Initiative Reauthorization Act of 2026](https://policyrisk.com/legislation/119-s-3597)
- [119-s-2142: GOLDEN DOME Act of 2025](https://policyrisk.com/legislation/119-s-2142)
- [119-s-2438: Transformation to Competitive Integrated Employment Act](https://policyrisk.com/legislation/119-s-2438)
- [119-s-4952: Protecting American Taxpayers Act](https://policyrisk.com/legislation/119-s-4952)
- [119-s-1748: Kids Online Safety Act](https://policyrisk.com/legislation/119-s-1748)
- [All bills in Congress](https://policyrisk.com/legislation)

Source: PRIA, https://policyrisk.com/legislation/119-s-3531 (as of 2026-04-21).