Table 9.1   Nuclear Generating Units, 1955-2007
Year	Original Licensing Regulations (10 CFR Part 50) 1			Current Licensing Regulations (10 CFR Part 52) 1			Permanent Shutdowns 6	Operable Units 7
	Construction Permits Issued 2,3	Low-Power Operating Licenses Issued 3,4	Full-Power Operating Licenses Issued 3,5	Early Site Permits Issued 3	Combined License Applications Under Review	Combined Licenses Issued 3
1955	1	0	0	– –	– –	– –	0	0
1956	3	0	0	– –	– –	– –	0	0
1957	1	1	1	– –	– –	– –	0	1
1958	0	0	0	– –	– –	– –	0	1
1959	3	1	1	– –	– –	– –	0	2
1960	7	1	1	– –	– –	– –	0	3
1961	0	0	0	– –	– –	– –	0	3
1962	1	7	6	– –	– –	– –	0	9
1963	1	3	2	– –	– –	– –	0	11
1964	3	2	3	– –	– –	– –	1	13
1965	1	0	0	– –	– –	– –	0	13
1966	5	1	2	– –	– –	– –	1	14
1967	14	3	3	– –	– –	– –	2	15
1968	23	0	0	– –	– –	– –	2	13
1969	7	4	4	– –	– –	– –	0	17
1970	10	4	3	– –	– –	– –	0	20
1971	4	5	2	– –	– –	– –	0	22
1972	8	6	6	– –	– –	– –	1	27
1973	14	12	15	– –	– –	– –	0	42
1974	23	14	15	– –	– –	– –	2	55
1975	9	3	2	– –	– –	– –	0	57
1976	9	7	7	– –	– –	– –	1	63
1977	15	4	4	– –	– –	– –	0	67
1978	13	3	4	– –	– –	– –	1	70
1979	2	0	0	– –	– –	– –	1	69
1980	0	5	2	– –	– –	– –	0	71
1981	0	3	4	– –	– –	– –	0	75
1982	0	6	4	– –	– –	– –	1	78
1983	0	3	3	– –	– –	– –	0	81
1984	0	7	6	– –	– –	– –	0	87
1985	0	7	9	– –	– –	– –	0	96
1986	0	7	5	– –	– –	– –	0	101
1987	0	6	8	– –	– –	– –	2	107
1988	0	1	2	– –	– –	– –	0	109
1989	0	3	4	– –	– –	– –	2	111
1990	0	1	2	– –	– –	– –	1	112
1991	0	0	0	– –	– –	– –	1	111
1992	0	0	0	– –	– –	– –	2	109
1993	0	1	1	– –	– –	– –	0	110
1994	0	0	0	– –	– –	– –	1	109
1995	0	1	0	– –	– –	– –	0	109
1996	0	0	1	– –	– –	– –	1	109
1997	0	0	0	0	0	0	2	107
1998	0	0	0	0	0	0	3	104
1999	0	0	0	0	0	0	0	104
2000	0	0	0	0	0	0	0	104
2001	0	0	0	0	0	0	0	104
2002	0	0	0	0	0	0	0	104
2003	0	0	0	0	0	0	0	104
2004	0	0	0	0	0	0	0	104
2005	0	0	0	0	0	0	0	104
2006	0	0	0	0	0	0	0	104
2007	0	0	0	3	4	0	0	104
Total	177	132	132	3	4	0	28	– –
1Data in columns 1-3 are based on the U.S. Nuclear Regulatory Commission (NRC) regulation 10 CFR Part 50.  Data in columns 4-6 are based on the NRC regulation 10 CFR Part 52.  See Note 1, "Pending Actions on Nuclear Generating Units," at end of section. 7Total of nuclear generating units holding full-power licenses, or equivalent permission to operate, at the end of the year (the number of operable units equals the cumulative number of units holding full-power licenses minus the cumulative number of permanent shutdowns). 2Issuance by regulatory authority of a permit, or equivalent permission, to begin construction. – – = Not applicable.   3Numbers reflect permits or licenses issued in a given year, not extant permits or licenses. Note:  See Note 2, "Coverage of Nuclear Energy Statistics," at end of section. 4Issuance by regulatory authority of license, or equivalent permission, to conduct testing but not to operate at full power. Web Page:  For related information, see http://www.eia.doe.gov/fuelnuclear.html. 5Issuance by regulatory authority of full-power operating license, or equivalent permission (note that some units receive full-power licenses the same year they receive low-power licenses).  Units initially undergo low-power testing prior to commercial operation. Sources:  See end of section. 6Number of nuclear generating units, in a given year, ceasing operation permanently.