The canton is white, charged with the Sun of May, from which 16 rays extend, alternating between triangular and wavy.

The first flag designed in 1828 had 9 light blue stripes; this number was reduced to 4 in 1830 due to visibility problems from distance.

9,943, establishes that every natural or legal citizen of Uruguay must take an Pledge of Allegiance to the National Flag.

[6] Public educational institutes that do not carry out the ceremony may be subject to administrative sanctions and private ones may be fined.

[7] The lack of the Pledge of Allegiance to the flag carries sanctions such as the impossibility of issuing professional or technical titles, and access to work in the public service.