California SB 574 Is on Newsom's Desk. Here's What the October 12 Deadline Means for Every Attorney.

California SB 574 Is on Newsom's Desk. Here's What the October 12 Deadline Means for Every Attorney.

A California litigation attorney set two calendar reminders in June: August 31, when the legislature adjourned, and September 30, when she expected the governor to act. She'd been tracking SB 574 since it passed the Senate 39-0 in January. She used AI for first drafts of discovery responses, had a citation verification workflow, disclosed AI use in engagement letters. She felt prepared.

Then August 31 arrived and the bill was enrolled — sent to Newsom's desk. The governor's deadline wasn't September 30. Because SB 574 was enrolled at session's end, the 30-day review window runs from adjournment. The real deadline is approximately October 12, 2026.

She updated her calendar. The question is whether you have one.

Where Things Stand as of August 31

California SB 574 has passed both chambers of the state legislature. The Senate voted 39-0 in January. The Assembly passed it in the final days before session close. It is enrolled — the legislative process is complete. Governor Newsom now holds the only vote that matters.

This is Phase 2 of the most consequential AI legislation for attorneys in the United States. Phase 1 was the legislative fight — whether SB 574 could survive a full-session debate over what obligations to impose on attorneys using AI. It survived, and it passed the Senate without a single dissenting vote.

Phase 2 is the governor's call.

Newsom has approximately 30 days from the August 31 adjournment to sign or veto. If he takes no action, the bill is automatically vetoed under California law. His track record on AI legislation is mixed: he signed several AI-related bills in August 2026 but vetoed SB 1047 in 2024, citing concern about regulating a sector California has staked its economic identity on. SB 574 is narrower — it regulates attorney conduct, not AI model development — which may make it easier to sign. But California's attorney community is not uniformly supportive, and some California Bar leaders have questioned whether statutory AI obligations are premature while the COPRAC ethics framework is still bedding in.

The outcome is genuinely uncertain. Which is why the two steps at the end of this piece apply either way.

If Signed: What Changes for California Attorneys

SB 574 signed would create three statutory obligations for California attorneys using generative AI:

You personally verify every citation before any court filing.

Not the AI. Not a paralegal. Not the platform's built-in citation checker. The signing attorney must verify that each AI-generated citation is accurate — that the case exists, says what the brief claims it says, and remains good law — before the filing goes in. Westlaw or Lexis, manually checked. "I ran the AI's citations through another AI" does not satisfy a personal-verification standard.

The courts have been tracking what happens when attorneys skip this step. AI citation sanctions reached $145,000 in Q1 2026 alone across more than 1,598 documented cases. Two Oregon attorneys paid $110,000 in a single matter. A Nebraska attorney was suspended indefinitely. If SB 574 is signed, a California attorney who files AI-generated citations without manual verification faces not just bar discipline under COPRAC Rule 3.3 but a statutory violation with civil exposure on top of it.

Confidential client data stays out of consumer-grade AI.

Personally identifying client information — Social Security numbers, dates of birth, driver's license numbers — cannot be entered into public or consumer-grade AI systems. If your attorneys are using personal ChatGPT accounts, Gemini without an enterprise subscription, or Claude without a privacy-compliant enterprise plan for client matters, that practice ends. This obligation already exists under COPRAC Rule 1.6. SB 574 signed makes it statutory.

No delegating "the practice of law" to AI.

The most ambiguous clause in the bill would remain unresolved even after a signature. The prohibition against delegating "the practice of law" to generative AI doesn't define what the practice of law is for AI purposes — courts have wrestled with that definition in unauthorized practice disputes for decades. If SB 574 becomes law, California courts will eventually define it in the AI context. Until then, the safest posture for a firm using AI-assisted drafting is documenting that the attorney exercises independent professional judgment over the final work product, not approving AI output wholesale.

If signed, SB 574 also becomes the first state statute in the US to codify the personal-verification standard for AI legal filings. Every other state bar currently watching California — and most are — will have a legislative template to work from.

If Vetoed: What "Vetoed" Does Not Mean

A California attorney who hears "Newsom vetoed SB 574" should not read that as "AI compliance pressure is off."

A veto means SB 574 does not become law. The obligations it would have codified do not become statutory. There is no new civil liability exposure based on the bill's provisions.

A veto does not mean the California Bar's COPRAC amendments — to Rules 1.1, 1.4, 1.6, 3.3, 5.1, and 5.3 — are revoked. Those amendments, approved through the full public comment process in 2026, remain in force as ethics rules. They require California attorneys to maintain competence in AI tools they use, communicate relevant AI use to clients when material, protect confidential client information from unauthorized AI disclosure, verify AI-generated citations before court filings, and supervise non-attorney staff who use AI in the firm's work.

Violations of ethics rules remain subject to bar discipline. A veto removes the statutory layer. It does not remove the ethics framework.

Newsom's previous AI veto — SB 1047 in 2024 — led to the establishment of voluntary guidance frameworks and the CalCompute initiative rather than a mandate. A SB 574 veto might follow a similar pattern: the California Bar publishes more detailed guidance under the existing COPRAC framework, or the governor issues his own AI standards for attorneys without the force of statute. Guidance is not a reprieve from COPRAC compliance.

For attorneys outside California: a veto signals that California's executive prefers bar-regulation over legislative AI mandates for attorneys, at least for now. That signal shapes how other states read the California story — but it does not stop the bar rulemaking processes already underway in New York, Texas, Florida, and Illinois, where COPRAC-style amendments are being closely watched.

Two Steps Before October 12 — Regardless of the Outcome

Step 1: Write a citation verification protocol and put it on paper.

Before any court filing that includes AI-assisted research or drafting, the signing attorney runs this four-step check: (1) search each citation in Westlaw or Lexis, (2) confirm the quoted passage appears verbatim in the source document, (3) confirm the case has not been overruled or narrowed on the cited point, (4) log the verification in a matter note with date, initials, and the tool used.

This takes 15 minutes for a filing with five citations. Write this protocol as a one-page firm standard, distribute it, and document that your attorneys follow it. Under COPRAC Rule 3.3, this is what competent citation practice with AI assistance looks like. Under SB 574 signed, it satisfies the statutory personal-verification requirement. The protocol works either way.

Step 2: Add AI disclosure language to your engagement letter.

One sentence is enough: "Our firm uses AI tools to assist with legal research, drafting, and document review. All AI-assisted work is reviewed and verified by a licensed attorney before delivery."

If you don't have that language in your current template, add it before your next new client matter. California's COPRAC Rule 1.4 already requires material communication about how the attorney conducts the representation. Courts and clients increasingly expect disclosure of AI use. A signed SB 574 would make it a statutory consideration. A vetoed SB 574 leaves COPRAC Rule 1.4 in place with the same expectation.

One Action Before October 12

Set two calendar reminders: October 12 (Newsom's deadline) and October 13 (your internal review date). On October 13, you'll either be updating your practice for signed statutory obligations or confirming that your COPRAC compliance posture is current. Either way, you need your citation verification protocol documented before that date.

If you haven't written one, that is your action this week: one page, four steps in the verification checklist, signed off by whoever runs your litigation practice. The sanctions record tells you what courts expect. A written protocol tells the court you already do it.

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Sources: California Legislative Information, SB 574 bill history (leginfo.legislature.ca.gov); Artificial Lawyer, "California SB 574: Will AI's Home State Kill Off AI for Law?" (August 26, 2026); California State Bar COPRAC AI ethics amendments; ComplexDiscovery AI sanctions tracker Q1 2026. For the full breakdown of what SB 574 would require, see California Is About to Pass the Strictest AI Law for Lawyers in the Country.