The stamp was launched in April by the country’s national tourist board; it covers the entire tourism value chain, including accommodation, entertainment, restaurants and other facilities.

More than 12,000 premises, businesses and services have already signed up, with "clean and safe" stamps valid until 30 April 2021.

The new online platform has been developed by Infraspeak in partnership with Google, and is available in both Portuguese and English.

It allows tourists to identify compliant establishments, and also sets out the requirements they must meet – as well as their ongoing adherence, monitored through random inspections.

In addition to identifying and "geo-referencing" clean and safe operations, the platform monitors tourists’ confidence, which is fed back to the tourist board, Turismo de Portugal.

The stamp has been designed to "strengthen the confidence of domestic and international tourists in Portugal" and show it is a safe tourist destination, despite Covid-19.

Members include: tourism accommodation; local accommodation; tourist entertainment companies; travel and tourism agencies; restaurants; golf facilities, car rental firms; tourist guides and interpreters; casinos; and other cultural facilities.