National flag in the stern from 08:00 A.M. until the sunset.
Holidays in BrazilFlags of the International Code of Signals arched and national flag on the tops of the masts from 08:00 A.M. until the sunset.
September 7 - Independence Day
November 15 - Republic Day
Commemorative HolidaysNational Flag on the tops of the masts from 08:00 A.M. until the sunset.
January 1 - New Year
April 21 - Independence Hero
May 1 - Labor Day
June 11 - Battle of Riachuelo – Naval Holiday
November 19 - Flag Day
December 13 - Navy Day
December 25 - Christmas
Funeral DaysNational Flag at half halyard on the masts and stern as well, from 12:00 A.M. until the sunset.
November 2 - (or whenever requested by the authorities)