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0.0 Pre BIE
May 1, 1851
October 11, 1851
May 15, 1855
November 15, 1855
May 1, 1862
November 15, 1862
April 1, 1867
October 31, 1867
May 1, 1873
October 31, 1873
May 10, 1876
November 10, 1876
May 1, 1878
November 10, 1878
October 1, 1880
April 30, 1881
April 8, 1888
December 10, 1888
May 5, 1889
October 31, 1889
May 1, 1893
October 30, 1893
May 10, 1897
November 8, 1897
April 14, 1900
November 12, 1900
April 30, 1904
December 1, 1904
April 25, 1905
November 6, 1905
April 28, 1906
November 11, 1906
April 23, 1910
November 1, 1910
April 6, 1913
October 31, 1913
March 2, 1915
December 4, 1915
May 20, 1929
January 30, 1930
May 27, 1933
November 1, 1933
1.1 General, First Category
April 27, 1935
November 25, 1935
1.3 Special
May 15, 1936
June 1, 1936
1.2 General, Second Category
May 25, 1937
November 25, 1937
May 14, 1938
May 22, 1938
April 30, 1939
October 31, 1939
May 20, 1939
September 2, 1939
July 10, 1947
August 15, 1947
July 27, 1949
August 13, 1949
September 24, 1949
October 9, 1949
December 8, 1949
June 8, 1950
April 28, 1951
May 20, 1951
July 26, 1953
October 31, 1953
September 22, 1953
October 14, 1953
May 15, 1954
October 15, 1954
May 25, 1955
June 19, 1955
June 10, 1955
August 28, 1955
May 21, 1956
June 21, 1956
July 6, 1957
September 29, 1957
April 17, 1958
October 19, 1958
May 1, 1961
October 31, 1961
April 21, 1962
October 21, 1962
June 25, 1965
November 13, 1965
April 27, 1967
October 29, 1967
April 6, 1968
October 6, 1968
March 15, 1970
September 13, 1970
August 27, 1971
September 30, 1971
May 4, 1974
November 3, 1974
July 20, 1975
January 18, 1976
2.2 Specialized
June 14, 1981
July 12, 1981
May 1, 1982
October 31, 1982
May 12, 1984
November 11, 1984
March 17, 1985
September 16, 1985
November 4, 1985
November 30, 1985
May 2, 1986
October 13, 1986
April 30, 1988
October 30, 1988
June 7, 1991
July 7, 1991
2.1 Universal
April 20, 1992
October 12, 1992
May 15, 1992
August 15, 1992
August 7, 1993
November 7, 1993
May 22, 1998
September 30, 1998
June 1, 2000
October 31, 2000
March 25, 2005
September 25, 2005
3.2 Recognized
June 14, 2008
September 14, 2008
3.1 Registered
May 1, 2010
October 31, 2010
May 12, 2012
August 12, 2012
May 1, 2015
October 31, 2015
June 10, 2017
September 10, 2017
October 20, 2020
April 10, 2021
May 3, 2025
November 3, 2025
May 15, 2027
August 15, 2027
October 1, 2030
March 31, 2031
