Table 4.

Brief description of the rules in place for the four NPI levels denominated as White, Yellow, Orange, Red

White
	$\bullet$ Requirement to wear masks outdoors
	$\bullet$ Social distancing of 1 meter
	$\bullet$ Curfew: decision taken at the regional level, Sardegna chose a curfew from 11:30PM to 5:00AM.
Yellow
All the restrictions of White, plus:
	$\bullet$ Curfew from 10:00PM to 5:00AM.
	$\bullet$ Shopping centers closed on holidays.
	$\bullet$ Museums and exhibitions closed.
	$\bullet$ Distance education for high schools; in-person teaching for preschools, elementary schools, and middle schools. Universities closed, except for laboratories
	$\bullet$ Public transportation must travel with max 50% occupancy
	$\bullet$ Coffee shops and restaurants open until 6:00PM. Take-away allowed until 10:00PM. Home deliveries without restrictions
	$\bullet$ Suspension of activities of amusement arcades, betting shops.
	$\bullet$ Pools, gyms, theaters, and movie theaters remain closed. Open sports centers.
Orange
All the restrictions of Yellow, plus:
	$\bullet$ Prohibited movement in and out of regions and municipalities (with some exceptions)
	$\bullet$ Coffee shops and restaurants closed 7 days a week. Take-away allowed until 10:00PM. Home deliveries without restrictions
Red
All the restrictions of Orange, plus:
	$\bullet$ It is forbidden any movement, even within its own municipality, except for reasons of work, needs and health.
	$\bullet$ Closed all stores, except supermarkets, grocery stores, newsstands, tobacconists, pharmacies, laundries, hairdressers.
	$\bullet$ Suspended all sports competitions except those recognized as being of national interest. Closed sports centers.