The country "Province of Saxony-Anhalt" passed in 1947 a constitution. In it was designated the flag of the country as a black-golden bicolor. Therewith was maintained the flag of the Prussian Province of Saxony. As in 1990 the country was revived under the name "Saxony-Anhalt" was introduced a golden-black bicolor. The colors have their origin in the medieval Saxon blazon.
On 5th of April in 2017, the Landtag parliament passed a new law about the state symbols. With it has everyone – not only officials and authorities – the possibility to use the black-yellow flag with the coat of arms in the middle.
The country "Province of Saxony-Anhalt" obviously did not use the blazon of the Prussian Province of Saxony but the blazon of the neighbouring Country of Saxony (completed by depictions of agriculture and mining). Probably one would link therewith to the heraldic traditions of the Duchy of Anhalt, because its coat of arms showed in a clefted shield – to the left the Brandenburg eagle and on the right the Saxon blazon. The coats of arms of the Country of Saxony and the Prussian Province of Saxony are since 1864 different in that, which color appears above first in the ten times divided blazon – black or gold. As in 1990 the country was revived under the name "Saxony-Anhalt" was introduced not only a new flag, but even a new coat of arms. Interesting is, that the color-sequence of the flag is heraldical correct now, in contrast to the Prussian province of Saxony, and in the new coat of arms appears the blazon of the Prussian Province of Saxony, completed by a Prussian eagle in the upper corner, and in the lower half of the coat of arms completed by the heraldic symbol of Anhalt-Bernburg which was already in use in the official flag of the country Anhalt from 1919 until 1945. The eagle stands probably for the region of Havelberg, which originally belonged to Prussia respectively until 1952 to the Country Brandenburg. For this means, that the eagle was red between 1990 and 1993. → red eagle on white ground → Brandenburg. The use of the coat of arms is reserved for offices and authorities of the country. The Saxony-Anhalt Sign is available for private use. It can be used by everyone, but its not allowed to change it.