The Ministry of Foreign Affairs of Antigua and Barbuda has confirmed that foreign investors can now take the Oath of Allegiance at fifteen Overseas Missions:

Antigua and Barbuda High Commission in the United Kingdom

Embassy of Antigua and Barbuda in Washington

Embassy of Antigua and Barbuda in Havana

Embassy of Antigua and Barbuda in Madrid

Embassy of Antigua and Barbuda in Athens

Embassy of Antigua and Barbuda in Jordan

Embassy of Antigua and Barbuda in Lebanon

Embassies of Eastern Caribbean States to the Kingdom of Morocco

Antigua and Barbuda Consulate General in Toronto

Antigua and Barbuda Consulate General in Miami

Antigua and Barbuda Honorary Consulate in Japan

Antigua and Barbuda Honorary Consulate in Kuwait

Antigua and Barbuda Honorary Consulate in Moscow

Antigua and Barbuda Honorary Consulate in South Korea

Antigua and Barbuda Honorary Consulate in Turkey

For this to be possible, the licensed agent (through whom the citizenship by investment application was made) must provide the Citizenship by Investment Unit (CBIU) with the following information:

The Application Number
Name of all individuals from the application desirous of swearing or affirming the oath (only individuals who have attained the age of 18 are eligible)
Three possible dates of the individual(s) to swear or affirm the oath. A lead time of at least two weeks is required
Country of residence if living outside of the jurisdiction of the selected authorized Mission. Travel details including arrival and departure dates to and from their jurisdiction to the Overseas Mission must be provided.

Also, you should always remember the rules established by each jurisdiction due to COVID-19 and follow them.