Using the Social Security Alias

The alias SSR_DT calculates, rather than looks up, an employee's social security normal retirement date based on the employee's birth date and the following social security normal retirement age table:

Year of Birth	SSNRA
1937 and before	65 years
1938	65 years, 2 months
1939	65 years, 4 months
1940	65 years, 6 months
1941	65 years, 8 months
1942	65 years, 10 months
1943 - 54	66 years
1955	66 years, 2 months
1956	66 years, 4 months
1957	66 years, 6 months
1958	66 years, 8 months
1959	66 years, 10 months
1960 and later	67 years