The following states can be considered to have uncodified constitutions.
Canada Although there are Constitution Acts, important aspects of the constitutional system are uncodified. The preamble to the
Constitution of Canada declares it to be "similar in principle to that of the United Kingdom" (which is uncodified). This applies at the federal level and to the
provinces, although each does have the power to modify or enact their own within their exclusive areas of responsibility. To date only British Columbia has enacted a codified provincial constitution (see
Constitution of British Columbia), though the other provinces' roles and powers are spelled out in section 93 of the
Constitution Act, 1867, and through amendments to it dealing with particular provinces such as the
Manitoba Act and the
Newfoundland Act.
China Some Chinese academics including legal theorist
Jiang Shigong have argued that China has both a written
constitution and an unwritten constitution based on the comprehensive leadership of the
Communist Party.
Israel The
Israeli Declaration of Independence promised a constitution by 2 October 1948, but due to irreconcilable differences in the
Knesset, no complete codified constitution has been written yet. However, there are several
Basic Laws.
New Zealand New Zealand has no single constitutional document. It is sometimes referred to as an "unwritten constitution", although the New Zealand constitution is in fact an amalgamation of
written and unwritten sources. The
Constitution Act 1986 has a central role, and unwritten traditions and
conventions.
San Marino San Marino has several documents that make up its constitution, including some lasting centuries. These documents include six books of The Statues of 1600 and the Declarations of Citizen's Rights. It is, in its oldest parts, the oldest surviving constitution in the world.
Saudi Arabia Saudi Arabia has no legally binding written constitution. In 1960,
King Faisal declared the
Quran, the religious text of Islam, to be the constitution. However, in 1992, the
Basic Law of Saudi Arabia was adopted by
royal decree.
United Kingdom In the United Kingdom, there is no defining document that can be termed "the constitution". Because the political system evolved over time, rather than being changed suddenly in an event such as a revolution, collapse of government or overthrow of monarchy, it is continuously being defined by acts of
parliament and decisions of the
courts. The closest the UK has come to a constitutional code has been the
Treaty of Union 1707. Due to the United Kingdom having an uncodified constitution, many acts have been added to the collection of
constitutional statutes, such as the
Parliament Acts 1911 and 1949, the
Freedom of Information Act 2000, the
Human Rights Act 1998 and the
Dissolution and Calling of Parliament Act 2022. This means the United Kingdom's constitutional rules are not written in a single document.
Jersey and Guernsey The
Bailiwick of Jersey and
Bailiwick of Guernsey are
Crown Dependencies with a complex relationship to the
United Kingdom embodied in unwritten constitutions. ==Former examples==