Under the constitution Azerbaijan’s state symbols are the state flag, state emblem and national anthem.
On 9th November 1918, the Government of Azerbaijan Democratic Republic adopted the first resolition on a tricolour national flag. After the collapse of the Azerbaijan Republic on 28th April 1920 and establishment of Soviet regime, the flag was rejected. The tricolour was restored on 17th November 1990, following a decision made at the Supreme Majlis session of the Nakhchivan Autonomous Republic and approved as its national flag. The issue of official recognition of the tricolour as the national flag by the Supreme Soviet of the Azerbaijan SSR was put on the agenda fro its session. On 5th February 1991 the Supreme Soviet of the Azerbaijan SSR considered an appeal by the Supreme Majlis of Nakhchivan Autonomous Republic and adapted the tricolour as the national flag of Azerbaijan.