A practical US–UK operating-differences register covering claims, disclosures, pricing, privacy, language, evidence and governance without reducing adaptation to spelling.
Documented fact: US FTC, UK CAP/ASA, CMA and ICO guidance impose different operational requirements and enforcement contexts for claims, price and direct marketing.
CDM inference: CDM’s Operating Differences Register is a governance tool for issue spotting; it is not legal advice or a complete statement of either country’s law.
Localisation is not translation
A programme crosses markets safely only when its underlying mechanism, evidence and operating controls travel with it. The same English words can carry different reference points, expectations and legal implications. A price claim, testimonial or email permission valid in one workflow may need a different presentation or basis in another.
Start by preserving the original strategic question: which customer decision is the programme intended to change, for whom and why? Then retest the audience situation, category language, alternatives, distribution and trust signals. Do not force a US customer journey into a UK media plan simply because assets already exist.
This is an issue-spotting framework, not a legal comparison. US rules include federal and state requirements; UK practice combines legislation, regulator guidance and advertising codes. Sector rules can be stricter.
Build a US–UK Operating Differences Register
| Area | Questions to revalidate | Required evidence | Owner |
|---|---|---|---|
| Audience and need | Does the same job, urgency and buying group exist? | Local research, search language, sales and service evidence | Market strategy |
| Claims | What express and implied claims does the asset make? | Claim register, substantiation, conditions and date | Marketing plus counsel |
| Disclosure | Can a reasonable viewer notice and understand material connections? | Rendered placement across formats and devices | Editorial/compliance |
| Price and offer | Are total price, mandatory fees, tax and promotion terms clear? | Local checkout and invitation-to-purchase review | Commerce plus counsel |
| Data and contact | What data is collected, why and on what permission or lawful basis? | Data map, notices, consent records and suppression logic | Privacy |
| Approval | Who may publish, pause, correct and respond? | Named RACI and escalation path | Programme owner |
Record the decision, not just the difference. “Review privacy” is not operational. “UK newsletter acquisition requires an approved consent or applicable exception, with wording and proof stored by the privacy owner” can be tested.
Recheck claims, endorsements and disclosures
The FTC states that US advertising claims must be truthful, non-deceptive, fair and evidence-based in its advertising and marketing guidance. The UK CAP Code likewise says marketing communications must not materially mislead and must not omit material information; consult the CAP rules on misleading advertising for the applicable medium.
The practical task is a claim-by-claim register. Capture the exact words, implied message, audience, evidence, conditions, geography, expiry and approver. A performance claim based on US customers may not support the same conclusion for UK users if the service, price or context differs.
Creator and testimonial disclosures require rendered review. A label that appears before “more” on one platform can disappear after localisation or in a shorter placement. Preserve material-connection evidence and platform settings, but do not assume platform tooling alone satisfies every requirement.
Language also affects implied claims. “Best”, “free”, “guaranteed” and comparative phrases need contextual review. Changing “color” to “colour” is not claim adaptation.
Treat price and data as product operations
UK businesses presenting a price to consumers should review the CMA’s current price-transparency guidance, which explains that total prices should include unavoidable fees and that drip pricing is prohibited. US price and promotion rules can involve the FTC and state law; obtain market-specific review rather than copying the UK presentation.
For UK electronic mail, the ICO explains that organisations normally need consent before sending unsolicited messages to individual subscribers unless an applicable exception applies, and consent must be specific and affirmative. Review the ICO’s electronic-mail marketing guidance against the actual acquisition and messaging workflow.
Create separate records for collection, profiling, activation and measurement. A data field available in the global platform is not automatically appropriate for the local programme. Check data residency, vendor roles, retention, suppression, children or vulnerable audiences and sensitive inferences with qualified privacy counsel.
Run the adaptation review before creative production
CDM asset: Market Adaptation Gate
- Confirm local audience, job and alternatives.
- Inventory every claim, endorsement and promotion.
- Map the customer journey, data events and external vendors.
- Test price and disclosure presentation on rendered devices.
- Assign local evidence, legal and operational owners.
- Run a small launch with complaint, opt-out and quality guardrails.
- Record corrections and feed learning back to the global source asset.
Keep a core-and-local architecture. Core elements can include brand identity, approved product facts and global evidence. Local elements include price, terms, testimonials, channels, consent language and culturally specific examples. Version both so a global update cannot silently overwrite a local requirement.
Decide what happens when markets disagree. The strictest rule is not always the best universal design, and fragmentation can be expensive. Use legal and product judgement to choose a global standard, market override or separate programme.
Limits and risks
This article cannot cover state, sector, employment, accessibility, tax, financial-promotion, health or children’s rules. Regulations and platform policies change. Specialist advice is required before launch.
Research samples can stereotype a market. “US buyers” and “UK buyers” are not homogeneous. Segment by actual decision context and accessibility needs rather than nationality alone.
CDM verdict
Moving a programme between the US and UK is an evidence and governance project. Retest the customer mechanism, rebuild the claim and data controls, and give local owners authority to stop or adapt work. Reuse assets only after the assumptions beneath them survive the move.
Related guides
Frequently asked questions
Can a US campaign be launched in the UK after changing the spelling?This article is editorial guidance. Apply the principles in proportion to your market, evidence, and responsibilities.
