Stricter isolation rules will be in place from tomorrow (30 July) for arrivals to Jersey from Belgium, the Bahamas and Argentina.
Belgium and the Bahamas have gone from green to amber on the government's traffic light system based on the risk of Covid-19 transmission.
That requires a coronavirus test on arrival and another on day 5. They have to self-isolate until both tests come back negative.
Argentina has gone from amber to red, which means a strict 14 day quarantine - even if the test on arrival comes back negative.
Saudi Arabia has been downgraded from red to amber.
"We’ll continue to closely monitor the situation in all countries and will reclassify their risk as the evidence demonstrates this is necessary." - Dr. Ivan Muscat, Deputy Medical Officer of Health.
It's after mainland Spain was upgraded to amber over the weekend. The Canary Islands and Balearic Islands are still on green.
The decision on which country to put in which category is based on the number of cases per 100,000 population.
Green: 25 cases or below per 100,000
Amber: 25.1 cases to 119.9 per 100,000
Red: 120 cases and above per 100,000.

Strive Hotel blocked, £29m Millbrook House Hotel gets go ahead
Tiny Seeds launches campaign for Fertility Awareness Week
Public meeting called on future of Havre des Pas Lido
Thousands for Guernsey and Jersey schools to boost active travel
Date set for Haut du Mont trial
Call for review of States member reprimands
Grab a 'Big Butt' is the message from Jersey Water
Princess Anne unveils new portrait of King Charles and Queen Camilla