Montserrat
effective 19 December 1989

Morocco
10 March 1972; revised 4 September 1992, amended September
1996
note: the amendment of September 1996 was to create a bicameral
legislature

Mozambique
30 November 1990

Namibia
ratified 9 February 1990, effective 12 March 1990

Nauru
29 January 1968; amended 17 May 1968

Nepal
15 January 2007 (interim Constitution); note - in April 2008,
a Constituent Assembly was elected to draft and promulgate a new
constitution by May 2010, but the deadline has been extended to May
2011

Netherlands
adopted 1815; amended many times, most recently in 2002

New Caledonia
4 October 1958 (French Constitution)

New Zealand
consists of a series of legal documents, including
certain acts of the UK and New Zealand parliaments, as well as The
Constitution Act 1986, which is the principal formal charter;
adopted 1 January 1987, effective 1 January 1987

Nicaragua
9 January 1987; revised in 1995, 2000, and 2005