Niger
adopted 18 July 1999
Nigeria
adopted 5 May 1999; effective 29 May 1999
Niue
19 October 1974 (Niue Constitution Act)
Norfolk Island
Norfolk Island Act of 1979 as amended in 2005
Northern Mariana Islands
Constitution of the Commonwealth of the
Northern Mariana Islands effective 1 January 1978; Covenant
Agreement fully effective 4 November 1986
Norway
17 May 1814; amended many times
Oman
none; note - on 6 November 1996, Sultan QABOOS issued a royal
decree promulgating a basic law considered by the government to be a
constitution which, among other things, clarifies the royal
succession, provides for a prime minister, bars ministers from
holding interests in companies doing business with the government,
establishes a bicameral legislature, and guarantees basic civil
liberties for Omani citizens
Pakistan
12 April 1973; suspended 5 July 1977, restored 30 December
1985; suspended 15 October 1999, restored in stages in 2002; amended
31 December 2003; suspended 3 November 2007; restored on 15 December
2007; amended 19 April 2010
Palau
1 January 1981
Panama
11 October 1972; revised in 1978, 1983, 1994, and 2004