An AI acceptable use policy should name the approved tools, define which data classes may never be pasted anywhere, and say plainly what is monitored and why. Most fail not because the clauses are wrong but because nothing checks whether they are followed.
What goes in it
These are the clauses that change behaviour.
A policy that runs to fifteen pages is a policy nobody reads to the end. These six are the ones that change behaviour, and the rest is usually restatement.
Each one should be written so that a person can tell, without asking anybody, whether what they are about to do is allowed.
- 01
Approved tools, by name
The tools your organisation has a contract with, and the account type that contract covers. "Enterprise ChatGPT" is a different entry from "ChatGPT".
- 02
Prohibited data, by class
Patient records, cardholder data, credentials, unreleased financials, personal data of EU residents. Classes, not examples, and each mapped to the rule it falls under.
- 03
Personal accounts
The clause most policies skip. The same domain serves a governed tenant and a personal login, and only one of them carries your terms.
- 04
What is monitored
What is inspected, at what moment, what is recorded, and what is never recorded. Written here rather than discovered later.
- 05
How to ask for an exception
A policy with no exception route is a policy people route around. Name the person and the turnaround.
- 06
When it is reviewed
Provider terms change without notice. A policy with no review date describes the terms that applied when it was written.
What usually goes wrong
A deny list ages faster than you can maintain it.
The instinct is to list the tools people may not use. That list is incomplete the week it is published: new products launch constantly, and an assistant added inside a tool you already approved is not a new domain at all.
An allow list has the opposite property. It is shorter, it is yours to control, and anything outside it is covered by one sentence rather than by a list somebody has to keep.
The second common failure is writing the policy before anybody knows what staff are actually using. A rule written against a guess is either too strict, in which case it is routed around, or too loose, in which case it changes nothing. Finding out first is a week of work that saves the policy.
Making it hold
A clause nobody can check is a suggestion.
Every clause in the six above can be enforced at the moment of the send, on the device, rather than audited afterwards. That is the difference between a policy and a statement of intent.
The ordering matters. Watch first, then warn, then block, and only where the data class justifies it. Most organisations spend the first two months on the first of those, which is also what makes the consultation conversation straightforward: you are describing what you observed rather than what you assumed.
The prohibited data clause
Name the classes your other rules already define.
This is the clause that decides whether the policy is usable, and the common failure is writing it from scratch in language that exists nowhere else in the organisation.
You almost certainly already have data classes defined, in a classification policy, a records schedule or the scoping document for whichever audit you last went through. Use those words. A person deciding whether they may paste something should be able to recognise the category from the label on the system they took it out of, and a reviewer should be able to map a detection back to the rule that makes it a problem.
Write the clause by class and then give one concrete example per class, because the class makes it complete and the example makes it understood. What to avoid is a list of examples with no class behind it, which is the shape most of these clauses take and which leaves everybody arguing about whether the thing in front of them is sufficiently like the example.
Keeping it current
A policy with no named owner is a document.
Policies in this area go stale faster than most, because the ground underneath them moves without telling anybody.
Three things change on their own: provider terms, which vary on notice and quietly invalidate an assessment; the tools in use, which grow every quarter and grow fastest inside software you already approved; and the regulatory picture, which is moving in several jurisdictions at once. A policy that does not name who re-reads these and when is describing a moment that has passed.
What a named owner and a review date are worth is mostly that somebody notices. The review itself is usually short: has the approved list changed, have any provider terms changed, has anything appeared in discovery that nobody has assessed. Two of those three questions can be answered from a report rather than from a meeting, which is the argument for measuring usage continuously rather than surveying it annually.
Questions
Should we ban AI tools outright?
Almost never. A ban moves the behaviour to a personal phone, where there is no visibility and no policy. The organisations that get this right approve a small number of tools properly, make those the easy option, and spend their effort on the data classes rather than on the tool list.
How long should the policy be?
Short enough that somebody reads it before their first prompt. Two pages covering the six clauses beats fifteen pages of restatement. Put the detail in a separate standard that the policy references, so the policy itself stays readable.
Do we need a separate policy, or can this go in the existing acceptable use policy?
Either works. What matters is that the AI-specific clauses exist somewhere findable: approved tools by name, prohibited data by class, personal accounts, and monitoring. Bolting them onto an existing AUP is usually faster to get approved.
What about contractors and third parties?
They need to be in scope explicitly, and this is where most policies are silent. A contractor on their own laptop is outside a device-based control entirely, so the policy has to rely on contract terms there, and it should say so rather than imply coverage that does not exist.
How do we handle an employee who breaches it?
The first question is whether the control warned them. A breach that happened with no warning in the moment is a gap in the control, not a disciplinary matter. Once warnings are in place and recorded, the record itself answers the question.
How often should it be reviewed?
At least twice a year, and whenever a provider changes its terms. Set the date in the policy. A review that depends on somebody remembering is a review that happens after the incident.
Does a policy help with GDPR or the EU AI Act?
It is necessary and not sufficient. Both regimes ask what you did, not what you wrote down. A policy with monitoring that is proportionate, documented and actually applied is evidence; a policy with no enforcement behind it is a document.
Should the policy name specific tools or describe categories?
Name the tools, and the account type that your contract covers. A category like "approved AI assistants" leaves every individual decision to the reader, which is the thing the policy existed to prevent. Naming them means maintaining the list, which is the work, and it is less work than arbitrating disagreements about what the category included.
How long should an AI acceptable use policy be?
Two pages is usually enough for the policy itself. If it runs longer, the extra is normally standards or procedure, which belong in separate documents with separate owners and review cycles. A policy nobody finishes is a policy nobody follows.
Do we need a separate policy, or a clause in the existing one?
A clause in your acceptable use policy is sufficient for most organisations and is easier to keep current, because it inherits an owner and a review date that already exist. A standalone document makes sense where AI use is itself regulated in your sector, or where a customer or auditor expects to be handed one.
Keep reading
- Discovery Finding shadow AI Four ways to find out which AI tools your staff actually use, what each one misses, and why the survey is the least reliable of them. 7 min read
- The law Is monitoring employee AI use legal? Notice, works councils and jurisdiction: what we know, and what needs your counsel. 6 min read
- Glossary Sanctioned AI tool A tool approved under contract with agreed data handling terms, and why that approval attaches to the account rather than to the website. 3 min read
- EU AI Act The EU AI Act and AI tools Most staff use of ChatGPT is not high-risk under the Act. The obligations that do apply are literacy, disclosure, and the GDPR duties underneath. 6 min read