The Arizona Constitution was written in 1910. It was amended and ratified by Arizona voters and was approved by Congress in 1911. On February 14, 1912, Arizona was declared an equal State of the Union. Arizona citizens exercised their right to amend the Constitution since that time. The current Constitution is the first and only Constitution adopted by the state of Arizona. The Constitution is divided into a preamble and 30 articles.
Article XXI of the Arizona Constitution provides the Mode of Amending. The three methods of constitutional amendment allowed under Article 21 are:
- Initiated constitutional amendments.
- Legislatively-referred constitutional amendments.
- A constitutional convention called by a statewide vote of the people.
Full text of Arizona Constitution: http://www.azleg.gov/const/arizona_constitution.pdf