California 20252026 Regular Session Status: Passed Assembly 1 D cosponsors

AB 557 — California Factory-Built Housing Law.

Last action — In committee: Set, first hearing. Hearing canceled at the request of author.

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  1. ✓
    Introduced
  2. ✓
    In Committee
  3. 3
    Passed Assembly
  4. 4
    Passed Senate
  5. 5
    To Executive
  6. 6
    Enacted

This bill has passed the Assembly. Introduced February 12, 2025. It now moves to the second chamber.

Next likely step: consideration and a floor vote in the Senate.

Prognosis

Advancing 48% · moderate confidence

Where this bill stands today.

Odds of enactment

Moderate

How often bills like it became law.

  • Passed Assembly

    Current position in the legislative process.

  • 1 sponsor

    1 primary, 0 co-sponsors signed on.

  • Single-party support

    Sponsorship is currently within one party (1 D).

  • Cleared a recorded vote

    Passed 3 recorded votes so far.

Prognosis reads this bill's own signals — stage, sponsorship breadth, committee status, recorded votes and cross-state momentum. Odds come from a model trained on which bills have become law.

Summary

Existing law, the California Factory-Built Housing Law, requires all factory-built housing after a specified date that is sold or offered for sale to first users within the state to bear insignia of approval issued by the department, deems that housing to comply with the requirements of all ordinances or regulations enacted by any city, city and county, county, or district that may be applicable to the construction of housing, as specified, and prohibits a city, city and county, county, and district from requiring submittal of plans for any factory-built housing manufactured, or to be manufactured pursuant to these provisions, as specified. Existing law requires the department to provide by regulation for the qualification and disqualification of design approval agencies to perform approval of factory-built housing plans and specifications and makes approval by these agencies the equivalent of department approval. The law provides that any person who violates any of these provisions and other specified law is guilty of a misdemeanor, as specified. This bill would require plans or specifications of factory-built housing approved pursuant to these provisions to be approved by unit serial number and would authorize the approved plans or specifications to be used in subsequent development projects unless building standards relating to factory-built housing are modified, as specified. The bill would require the department and the design approval agencies to limit their review to the portions of a plan or specification that has not already received approval, as specified. By expanding the scope of an existing crime, this bill would impose a state-mandated local program. The California Constitution requires the state to reimburse local agencies and school districts for certain costs mandated by the state. Statutory provisions establish procedures for making that reimbursement. This bill would provide that no reimbursement is required by this act for a specified reason. The bill would include findings that changes proposed by this bill address a matter of statewide concern rather than a municipal affair and, therefore, apply to all cities, including charter cities.

Bill Text

Action History

  1. In committee: Set, first hearing. Hearing canceled at the request of author.

  2. Referred to Com. on HOUSING.

  3. In Senate. Read first time. To Com. on RLS. for assignment.

  4. Read third time. Passed. Ordered to the Senate. (Ayes 76. Noes 0. Page 1837.)

  5. Read second time. Ordered to third reading.

  6. From committee: Do pass. (Ayes 13. Noes 0.) (May 23).

  7. Joint Rule 62(a), file notice suspended. (Page 1627.)

  8. In committee: Set, first hearing. Referred to APPR. suspense file.

  9. In committee: Hearing postponed by committee.

  10. Re-referred to Com. on APPR. pursuant to Assembly Rule 96.

  11. Re-referred to Com. on L. GOV.

  12. From committee chair, with author's amendments: Amend, and re-refer to Com. on L. GOV. Read second time and amended.

  13. From committee: Do pass and re-refer to Com. on L. GOV. (Ayes 11. Noes 0.) (April 24). Re-referred to Com. on L. GOV.

  14. (Pending re-refer to Com. on L. GOV.)

  15. Assembly Rule 56 suspended. (Page 1265.)

  16. Re-referred to Com. on H. & C.D.

  17. From committee chair, with author's amendments: Amend, and re-refer to Com. on H. & C.D. Read second time and amended.

  18. Referred to Coms. on H. & C.D. and L. GOV.

  19. From printer. May be heard in committee March 15.

  20. Read first time. To print.

Sponsors

Sponsorship breakdown

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1 sponsors · 0 co-sponsors · 121 not signed on

Sponsors (1)

Co-sponsors (0)

None.

Not signed on (121)

121 members have not signed on to this bill.

Show all 121 →

"Not signed on" means a member has not sponsored or co-sponsored this bill — it does not imply opposition. Members flagged Voted No have a recorded No vote on this bill.

Whip count is in markup. Polling the chamber and every recorded vote this session. Only the first open is slow. It’s instant for you after this. Calling the roll · Tallying · Engrossing

Votes

AB 557 McKinnor Assembly Third Reading

Passed 76 Yea · 0 Nay · 3 Other
Party YeaNayPresentNot Voting
Democratic 58001
Republican 17002
Unaffiliated 1000
Total 76003
% of votes cast 96%0%0%4%
How each member voted (79)
Member Party Vote
Ávila Farías — Yea
Addis, Dawn Democratic Yea
Aguiar-Curry, Cecilia M. Democratic Yea
Ahrens, Patrick Democratic Yea
Alvarez, David Democratic Yea
Arambula, Joaquin Democratic Yea
Bains, Jasmeet Democratic Not Voting
Bauer-Kahan, Rebecca Democratic Yea
Bennett, Steve Democratic Yea
Berman, Marc Democratic Yea
Boerner, Tasha Democratic Yea
Bonta, Mia Democratic Yea
Bryan, Isaac G. Democratic Yea
Calderon, Lisa Democratic Yea
Caloza, Jessica Democratic Yea
Carrillo, Juan Democratic Yea
Connolly, Damon Democratic Yea
Elhawary, Sade Democratic Yea
Fong, Mike Democratic Yea
Gabriel, Jesse Democratic Yea
Garcia, Robert Democratic Yea
Gipson, Mike A. Democratic Yea
González, Mark Democratic Yea
Haney, Matt Democratic Yea
Harabedian, John Democratic Yea
Hart, Gregg Democratic Yea
Irwin, Jacqui Democratic Yea
Jackson, Corey A. Democratic Yea
Kalra, Ash Democratic Yea
Krell, Maggy Democratic Yea
Lee, Alex Democratic Yea
Lowenthal, Josh Democratic Yea
McKinnor, Tina Democratic Yea
Muratsuchi, Al Democratic Yea
Nguyen, Stephanie Democratic Yea
Ortega, Liz Democratic Yea
Pacheco, Blanca Democratic Yea
Papan, Diane Democratic Yea
Patel, Darshana R. Democratic Yea
Pellerin, Gail Democratic Yea
Petrie-Norris, Cottie Democratic Yea
Quirk-Silva, Sharon Democratic Yea
Ramos, James C. Democratic Yea
Ransom, Rhodesia Democratic Yea
Rivas, Robert Democratic Yea
Rodriguez, Celeste Democratic Yea
Rodriguez, Michelle Democratic Yea
Rogers, Chris Democratic Yea
Rubio, Blanca E. Democratic Yea
Schiavo, Pilar Democratic Yea
Schultz, Nick Democratic Yea
Sharp-Collins, LaShae Democratic Yea
Solache, Jr., José Luis Democratic Yea
Soria, Esmeralda Democratic Yea
Stefani, Catherine Democratic Yea
Valencia, Avelino Democratic Yea
Ward, Christopher M. Democratic Yea
Wicks, Buffy Democratic Yea
Wilson, Lori D. Democratic Yea
Zbur, Rick Chavez Democratic Yea
Alanis, Juan Republican Not Voting
Castillo, Leticia Republican Yea
Chen, Phillip Republican Yea
Davies, Laurie Republican Yea
DeMaio, Carl Republican Yea
Dixon, Diane Republican Yea
Ellis, Stan Republican Yea
Flora, Heath Republican Yea
Gallagher, James Republican Yea
Gonzalez, Jeff Republican Yea
Hadwick, Heather Republican Yea
Hoover, Josh Republican Yea
Lackey, Tom Republican Yea
Macedo, Alexandra Republican Yea
Patterson, Joe Republican Yea
Sanchez, Kate Republican Not Voting
Ta, Tri Republican Yea
Tangipa, David J. Republican Yea
Wallis, Greg Republican Yea

Official roll call →

Do pass.

Passed 13 Yea · 0 Nay · 2 Other
Party YeaNayPresentNot Voting
Democratic 11000
Republican 2002
Total 13002
% of votes cast 87%0%0%13%
How each member voted (15)
Member Party Vote
Arambula, Joaquin Democratic Yea
Calderon, Lisa Democratic Yea
Caloza, Jessica Democratic Yea
Elhawary, Sade Democratic Yea
Fong, Mike Democratic Yea
González, Mark Democratic Yea
Hart, Gregg Democratic Yea
Pacheco, Blanca Democratic Yea
Pellerin, Gail Democratic Yea
Solache, Jr., José Luis Democratic Yea
Wicks, Buffy Democratic Yea
Dixon, Diane Republican Yea
Sanchez, Kate Republican Not Voting
Ta, Tri Republican Yea
Tangipa, David J. Republican Not Voting

Official roll call →

Do pass and be re-referred to the Committee on [Local Government]

Passed 11 Yea · 0 Nay · 1 Other
Party YeaNayPresentNot Voting
Democratic 8000
Unaffiliated 1000
Republican 2001
Total 11001
% of votes cast 92%0%0%8%
How each member voted (12)
Member Party Vote
Ávila Farías — Yea
Caloza, Jessica Democratic Yea
Garcia, Robert Democratic Yea
Haney, Matt Democratic Yea
Kalra, Ash Democratic Yea
Lee, Alex Democratic Yea
Quirk-Silva, Sharon Democratic Yea
Wicks, Buffy Democratic Yea
Wilson, Lori D. Democratic Yea
Patterson, Joe Republican Yea
Ta, Tri Republican Yea
Tangipa, David J. Republican Not Voting

Official roll call →

Subjects

housing labor
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Frequently asked questions

What does AB 557 do?
Existing law, the California Factory-Built Housing Law, requires all factory-built housing after a specified date that is sold or offered for sale to first users within the state to bear insignia of approval issued by the department, deems that housing to comply with the requirements of all ordinances or regulations enacted by any city, city and county, county, or district that may be applicable to the construction of housing, as specified, and prohibits a city, city and county, county, and district from requiring submittal of plans for any factory-built housing manufactured, or to be manufactured pursuant to these provisions, as specified. Existing law requires the department to provide by regulation for the qualification and disqualification of design approval agencies to perform approval of factory-built housing plans and specifications and makes approval by these agencies the equivalent of department approval. The law provides that any person who violates any of these provisions and other specified law is guilty of a misdemeanor, as specified. This bill would require plans or specifications of factory-built housing approved pursuant to these provisions to be approved by unit serial number and would authorize the approved plans or specifications to be used in subsequent development projects unless building standards relating to factory-built housing are modified, as specified. The bill would require the department and the design approval agencies to limit their review to the portions of a plan or specification that has not already received approval, as specified. By expanding the scope of an existing crime, this bill would impose a state-mandated local program. The California Constitution requires the state to reimburse local agencies and school districts for certain costs mandated by the state. Statutory provisions establish procedures for making that reimbursement. This bill would provide that no reimbursement is required by this act for a specified reason. The bill would include findings that changes proposed by this bill address a matter of statewide concern rather than a municipal affair and, therefore, apply to all cities, including charter cities.
Who sponsors AB 557?
AB 557 is sponsored by McKinnor, Tina (Democratic).
What is the current status of AB 557?
This bill has passed the Assembly. Introduced February 12, 2025. It now moves to the second chamber.
Where can I track AB 557?
Track AB 557 free on One Click Politics — get push/email alerts when it moves.

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