Border Force required clear, authoritative communications to inform travellers entering the UK that completing a COVID-19 contact locator form was a mandatory legal requirement, with penalties for non-compliance. Using the established GOV.UK design system — bold typography, NHS blue, and the government crest — the campaign delivered a clear hierarchy of messages outlining the requirement, legal obligation, and penalties. Minimal visuals, red warning accents, and consistent layouts ensured clarity, authority, and instant recognition across print and digital formats at all UK entry points.