# AI training data law

URL: https://aidataforsale.com/ai-data-law
Publisher: AI Data For Sale (Marketing Signals Ltd)
Updated: 2026-11-10

Plain-English guides to the laws that shape AI training data deals: state privacy laws, California AB 2013, the EU AI Act, and the AI copyright lawsuits to watch.

The rules that decide what data can be licensed for AI training, and what buyers must disclose. Written for business owners and AI teams, not as legal advice.

## In short

- No single US law governs selling data for AI training. Privacy, sector, contract and copyright law each apply to different parts of a deal.
- State privacy laws treat many data licenses as a sale of personal data, which triggers notice and opt-out rights.
- California AB 2013 and the EU AI Act require AI developers to describe their training data, so buyers increasingly ask sellers for provenance records.
- Court rulings so far reward lawfully acquired data and punish pirated sources, which supports licensing.

## The four bodies of law in a data deal

| Area | The question it answers | Where to start |
| --- | --- | --- |
| Privacy law | Can personal information in the data be shared, and on what notice? | [State privacy laws](https://aidataforsale.com/ai-data-law/state-privacy-laws) |
| Sector law | Does HIPAA, GLBA, FERPA or BIPA apply? | [De-identification](https://aidataforsale.com/learn/de-identification-for-ai-training-data) |
| Contract | Do customer terms, NDAs or platform terms restrict the data? | [Is selling company data legal?](https://aidataforsale.com/learn/is-selling-company-data-legal) |
| Copyright | Who owns the content, and is training a fair use? | [AI copyright lawsuits](https://aidataforsale.com/ai-copyright-lawsuits) |

AI-specific transparency laws sit on top: [California AB 2013](https://aidataforsale.com/ai-data-law/california-ab-2013) and the [EU AI Act](https://aidataforsale.com/ai-data-law/eu-ai-act-training-data) require developers to document training data.

## This is not legal advice

These guides explain how the rules work so you can ask better questions. Every deal needs its own legal review. We are a broker, not a law firm, and we tell clients when they need a lawyer.

## Questions

### Is it legal to sell data to AI companies in the US?

Often yes, when you hold the rights, your privacy notices allow it and sector laws do not prohibit it. Each data set needs checking. Read [is selling company data legal?](https://aidataforsale.com/learn/is-selling-company-data-legal)

## Pages in this section

- [Selling data for AI training under US state privacy laws](https://aidataforsale.com/ai-data-law/state-privacy-laws): Licensing data that contains personal information to an AI company can be a sale under state privacy laws.
- [California AB 2013: what AI developers must disclose about training data](https://aidataforsale.com/ai-data-law/california-ab-2013): AB 2013 requires developers of generative AI systems offered to Californians to post documentation about their training data.
- [The EU AI Act and training data](https://aidataforsale.com/ai-data-law/eu-ai-act-training-data): Obligations for providers of general-purpose AI models applied from August 2, 2025.
- [AI copyright lawsuits tracker](https://aidataforsale.com/ai-copyright-lawsuits): Bartz v. Anthropic produced the largest copyright settlement on record, $1.5 billion, given final approval in July 2026.

## Sources

- [California Attorney General: California Consumer Privacy Act (CCPA)](https://oag.ca.gov/privacy/ccpa)
- [LegiScan: California AB 2013, Generative artificial intelligence training data transparency](https://legiscan.com/CA/text/AB2013/id/2910882)
- [European Commission: AI Act regulatory framework](https://digital-strategy.ec.europa.eu/en/policies/regulatory-framework-ai)