CA AB 1704
in committeeGreenhouse gases: embodied carbon building materials.
California · 2025-2026 Regular Session · lower
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Quick answers
Did CA AB 1704 pass?
Not yet. CA AB 1704 is in committee and has not come to a final vote. Latest recorded action (2026-08-13): In committee: Held under submission.
What is CA AB 1704 about?
Existing law requires, by December 31, 2026, the State Air Resources Board, in consultation with relevant stakeholders, as provided, to develop a framework for measuring the average carbon intensity of the materials used in the construction of new buildings, including those for residential uses. Existing law requires, by December 31, 2028, the state board to develop a comprehensive strategy for the state's building sector to achieve a 40% net reduction in greenhouse gas emissions of building materials, as specified, as soon as possible, but no later than December 31, 2035. Existing law authorizes the state board to establish an embodied carbon trading system, as defined, in compliance with these requirements, as provided. This bill would require the state board to determine whether using building materials with lower embodied carbon would be cost effective during the first 2-year period of their use compared to using conventional building materials before implementing the above-described provisions. If the state board determines that using building materials with lower embodied carbon would not be cost effective during the first 2-year period of their use compared to using conventional building materials, the bill would require the state board to delay or suspend, as applicable, implementation of those provisions for not less than 5 years, not to exceed 10 years in total.
Who sponsors CA AB 1704?
Mark González is the primary sponsor of CA AB 1704.
Description
Existing law requires, by December 31, 2026, the State Air Resources Board, in consultation with relevant stakeholders, as provided, to develop a framework for measuring the average carbon intensity of the materials used in the construction of new buildings, including those for residential uses. Existing law requires, by December 31, 2028, the state board to develop a comprehensive strategy for the state's building sector to achieve a 40% net reduction in greenhouse gas emissions of building materials, as specified, as soon as possible, but no later than December 31, 2035. Existing law authorizes the state board to establish an embodied carbon trading system, as defined, in compliance with these requirements, as provided. This bill would require the state board to determine whether using building materials with lower embodied carbon would be cost effective during the first 2-year period of their use compared to using conventional building materials before implementing the above-described provisions. If the state board determines that using building materials with lower embodied carbon would not be cost effective during the first 2-year period of their use compared to using conventional building materials, the bill would require the state board to delay or suspend, as applicable, implementation of those provisions for not less than 5 years, not to exceed 10 years in total.
- Introduced
- 2026-03-02
- Latest action
- 2026-08-13 — In committee: Held under submission.
- Bill type
- bill
- Last updated
- —
Subjects
Sponsors
- Mark Gonzálezauthor
Committees
Not provided by source.
Action timeline
Newest first
2026-08-13
In committee: Held under submission.
2026-08-10
In committee: Referred to APPR. suspense file.
2026-07-29
In committee: Hearing postponed by committee.
2026-06-23
Read second time and amended. Re-referred to Com. on APPR.
amendment-passage,reading-1,reading-2,referral-committee
2026-06-22
From committee: Amend, and do pass as amended and re-refer to Com. on APPR. (Ayes 6. Noes 0.) (June 17).
amendment-introduction,amendment-passage,committee-passage,referral-committee
2026-05-27
In committee: Set, first hearing. Hearing canceled at the request of author.
2026-05-06
Referred to Com. on E.Q.
referral-committee
2026-04-28
In Senate. Read first time. To Com. on RLS. for assignment.
reading-1,referral-committee
2026-04-27
Read third time. Passed. Ordered to the Senate. (Ayes 59. Noes 0. Page 4836.)
passage,reading-1,reading-3
2026-04-23
Read second time. Ordered to third reading.
reading-1,reading-2,reading-3
2026-04-22
From committee: Do pass. (Ayes 13. Noes 0.) (April 22).
committee-passage,committee-passage-favorable
2026-04-09
Re-referred to Com. on APPR.
referral-committee
2026-04-08
Read second time and amended.
amendment-passage,reading-1,reading-2
2026-04-07
From committee: Amend, and do pass as amended and re-refer to Com. on APPR. (Ayes 11. Noes 0.) (April 6).
amendment-introduction,amendment-passage,committee-passage,referral-committee
2026-03-03
Re-referred to Com. on NAT. RES.
referral-committee
2026-03-02
From committee chair, with author's amendments: Amend, and re-refer to Com. on NAT. RES. Read second time and amended.
amendment-introduction,amendment-passage,committee-passage,reading-1,reading-2,referral-committee
2026-03-02
Referred to Com. on NAT. RES.
referral-committee
2026-02-05
From printer. May be heard in committee March 7.
2026-02-04
Read first time. To print.
reading-1
Versions
Documents
- application/pdf
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Votes
Do pass as amended and be re-referred to the Committee on [Appropriations]
2026-04-06 · pass · 11-0
Member-level votes (14)
- Hoover: yes
- Pellerin: yes
- Garcia: yes
- Bryan: yes
- Ellis: yes
- Alanis: yes
- Wicks: yes
- Macedo: yes
- Schultz: yes
- Haney: yes
- Boerner: yes
- Connolly: other
- Kalra: other
- Zbur: other
Do pass.
2026-04-22 · pass · 13-0
Member-level votes (15)
- Dixon: yes
- Fong: yes
- Pellerin: yes
- Ta: yes
- Arambula: yes
- Pacheco: yes
- Wicks: yes
- Krell: yes
- Tangipa: yes
- Mark González: yes
- Hoover: yes
- Solache: yes
- Caloza: yes
- Muratsuchi: other
- Calderon: other
AB 1704 Mark González Assembly Third Reading
2026-04-27 · pass · 59-0
Member-level votes (80)
- Davies: yes
- Soria: yes
- Hadwick: yes
- Jeff Gonzalez: yes
- Dixon: yes
- Arambula: yes
- Berman: yes
- Caloza: yes
- Quirk-Silva: yes
- Lackey: yes
- Patterson: yes
- Rivas: yes
- Michelle Rodriguez: yes
- Carrillo: yes
- Krell: yes
- Alanis: yes
- Johnson: yes
- Pellerin: yes
- Haney: yes
- Harabedian: yes
- Chen: yes
- DeMaio: yes
- Fong: yes
- Tangipa: yes
- Sanchez: yes
- Calderon: yes
- Gallagher: yes
- Elhawary: yes
- Ransom: yes
- Garcia: yes
- Mark González: yes
- Ávila Farías: yes
- Ward: yes
- Wicks: yes
- Gipson: yes
- Schiavo: yes
- Ta: yes
- Papan: yes
- Nguyen: yes
- Ortega: yes
- Alvarez: yes
- Patel: yes
- Jackson: yes
- Ahrens: yes
- Castillo: yes
- Lowenthal: yes
- Schultz: yes
- Wallis: yes
- Valencia: yes
- Wilson: yes
- Flora: yes
- Hoover: yes
- Ramos: yes
- McKinnor: yes
- Solache: yes
- Aguiar-Curry: yes
- Pacheco: yes
- Lee: yes
- Blanca Rubio: yes
- Irwin: other
- Bauer-Kahan: other
- Macedo: other
- Rogers: other
- Gabriel: other
- Boerner: other
- Zbur: other
- Petrie-Norris: other
- Sharp-Collins: other
- Stefani: other
- Bains: other
- Addis: other
- Celeste Rodriguez: other
- Bennett: other
- Hart: other
- Muratsuchi: other
- Kalra: other
- Bonta: other
- Connolly: other
- Bryan: other
- Ellis: other
Do pass as amended, but first amend, and re-refer to the Committee on [Appropriations]
2026-06-17 · pass · 6-0
Member-level votes (7)
- Menjivar: yes
- Dahle: yes
- Hurtado: yes
- Valladares: yes
- Blakespear: yes
- Gonzalez: yes
- Allen: other
Related bills
No related bills recorded for this bill.
Official source
Attribution
Data from openstates_api_sync, retrieved 2026-07-30T13:52:12.397178Z
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