Certificate History

Certificate numbers have been issued sequentially since 1960. The following table shows the years in which the noted certificate numbers were issued.

Certified Industrial Hygienist   
1960 1 to 13 1961 14 to 40
1962 41 to 483 1963 484 to 525
1964 526 to 554 1965 555 to 572
1966 573 to 595 1967 596 to 609
1968 610 to 627 1969 628 to 647
1970 648 to 673 1971 674 to 694
1972 695 to 742 1973 743 to 808
1974 809 to 918 1975 919 to 1002
1976 1003 to 1125 1977 1126 to 1313
1978 1314 to 1521 1979 1522 to 1750
1980 1751 to 2007 1981 2008 to 2175
1982 2176 to 2479 1983 2480 to 2732
1984 2733 to 2956 1985 2957 to 3233
1986 3234 to 3528 1987 3529 to 3848
1988 3849 to 4171 1989 4172 to 4581
1990 4582 to 5090 1991 5091 to 5457
1992 5458 to 5870 1993 5871 to 6335
1994 6336 to 6720 1995 6721 to 7018
1996 7019 to 7284 1997 7285 to 7612
1998 7613 to 7822 1999 7823 to 7966
2000 7967 to 8084 2001 8085 to 8236
2002 8237 to 8464 2003 8466 to 8740
2004 8741 to 8903 2005 8904 to 9110
2006 9111 to 9268 2007 9269 to 9429
2008 9430 to 9567 2009 9568 to 9743
2010 9744 to 9898 2011  9899 to 10061
2012 10062 to 10265 2013 10266 to 10490
2014 10491 to 10698 2015 10699 to 10959
2016 10960 to 11195    
Certified Associate Industrial Hygienist 
2001 CAIH - 1 to 12
2002 CAIH 13 to 23
2003 CAIH 24-29
2004 CAIH 30-34
2005 CAIH 35-37