Chapter Anniversaries

50th Anniversary
Nu Chapter
United States of America
Chartered: 21 June 1958

Xi Chapter
United States of America
Chartered: 6 August 1958

40th Anniversary
Alpha Tau Chapter
United States of America
Chartered: 2 March 1968

Alpha Upsilon Chapter
United States of America
Chartered: 3 March 1968

30th Anniversary
Gamma Eta Chapter
United States of America
Chartered: 18 February 1978

Gamma Theta Chapter
United States of America
Chartered: 4 March 1978

Gamma Iota Chapter
United States of America
Chartered: 10 March 1978

Gamma Kappa Chapter
United States of America
Chartered: 17 March 1978

Gamma Lambda Chapter
United States of America
Chartered: 18 March 1978

Gamma Mu Chapter
United States of America
Chartered: 3 April 1978

Gamma Nu Chapter
United States of America
Chartered: 7 April 1978

Gamma Xi Chapter
United States of America
Chartered: 14 April 1978

Gamma Omicron-at-Large Chapter
United States of America
Chartered: 14 April 1978

Gamma Pi-at-Large Chapter
United States of America
Chartered: 16 April 1978

Gamma Rho Chapter
United States of America
Chartered: 26 April 1978

Gamma Sigma Chapter
United States of America
Chartered: 30 April 1978

Gamma Tau-at-Large Chapter
United States of America
Chartered: 13 May 1978

Gamma Upsilon Chapter
United States of America
Chartered: 14 May 1978

Gamma Phi Chapter
United States of America
Chartered: 19 May 1978

Gamma Chi Chapter
United States of America
Chartered: 20 May 1978

Gamma Psi-at-Large Chapter
United States of America
Chartered: 11 June 1978

Gamma Omega Chapter
United States of America
Chartered: 19 October 1978

25th Anniversary
Zeta Phi Chapter
United States of America
Chartered: 11 September 1983

20th Anniversary
Iota Iota-at-Large Chapter
United States of America
Chartered: 4 March 1988

Iota Kappa Chapter
United States of America
Chartered: 11 March 1988

Iota Mu Chapter
United States of America
Chartered: 12 March 1988

Iota Nu Chapter
United States of America
Chartered: 13 March 1988

Iota Xi Chapter
United States of America
Chartered: 27 March 1988

Iota Omicron Chapter
Canada
Chartered: 27 March 1988

Iota Pi Chapter
United States of America
Chartered: 8 April 1988

Iota Sigma Chapter
United States of America
Chartered: 9 April 1988

Iota Tau Chapter
United States of America
Chartered: 9 April 1988

Iota Upsilon-at-Large Chapter
United States of America
Chartered: 10 April 1988

Iota Phi-at-Large Chapter
United States of America
Chartered: 10 April 1988

Iota Psi Chapter
United States of America
Chartered: 15 April 1988

Iota Omega Chapter
United States of America
Chartered: 16 April 1988

Kappa Alpha Chapter
United States of America
Chartered: 17 April 1988

Kappa Gamma Chapter
United States of America
Chartered: 17 April 1988

Kappa Delta Chapter
United States of America
Chartered: 22 April 1988

Kappa Epsilon-at-Large Chapter
United States of America
Chartered: 22 April 1988

Kappa Zeta-at-Large Chapter
United States of America
Chartered: 23 April 1988

Kappa Eta Chapter
United States of America
Chartered: 23 April 1988

Kappa Theta Chapter
United States of America
Chartered: 24 April 1988

20th Anniversaries
Kappa Iota Chapter
United States of America
Chartered: 24 April 1988

Kappa Kappa Chapter
United States of America
Chartered: 24 April 1988

Kappa Lambda Chapter
United States of America
Chartered: 28 April 1988

Kappa Mu Chapter
United States of America
Chartered: 29 April 1988

Kappa Nu Chapter
United States of America
Chartered: 29 April 1988

Kappa Xi Chapter
United States of America
Chartered: 30 April 1988

Kappa Omicron Chapter
United States of America
Chartered: 30 April 1988

Kappa Pi-at-Large Chapter
United States of America
Chartered: 6 May 1988

Kappa Rho-at-Large Chapter
United States of America
Chartered: 7 May 1988

Kappa Sigma Chapter
United States of America
Chartered: 7 May 1988

Kappa Tau Chapter
United States of America
Chartered: 7 May 1988

Kappa Upsilon-at-Large Chapter
United States of America
Chartered: 8 May 1988

Kappa Phi Chapter
United States of America
Chartered: 13 May 1988

Kappa Chi Chapter
United States of America
Chartered: 15 May 1988

Kappa Psi Chapter
United States of America
Chartered: 15 May 1988

Kappa Omega Chapter
United States of America
Chartered: 28 May 1988

10th Anniversaries
Omicron Beta Chapter
United States of America
Chartered: 4 April 1998

Omicron Gamma Chapter
United States of America
Chartered: 29 March 1998

Omicron Delta Chapter
United States of America
Chartered: 3 April 1998

Omicron Epsilon Chapter
United States of America
Chartered: 4 April 1998

Omicron Zeta Chapter
United States of America
Chartered: 5 May 1998

Omicron Eta Chapter
United States of America
Chartered: 7 April 1998

Omicron Theta Chapter
United States of America
Chartered: 11 April 1998

Omicron Iota Chapter
United States of America
Chartered: 16 April 1998

Omicron Lambda Chapter
United States of America
Chartered: 20 April 1998

Omicron Mu Chapter
United States of America
Chartered: 23 April 1998

Omicron Nu Chapter
United States of America
Chartered: 24 April 1998

Omicron Xi-at-Large Chapter
United States of America
Chartered: 26 April 1998

Omicron Omicron-at-Large Chapter
United States of America
Chartered: 26 April 1998

Omicron Pi Chapter
United States of America
Chartered: 26 April 1998

Omicron Rho Chapter
United States of America
Chartered: 29 April 1998

Omicron Sigma Chapters
United States of America
Chartered: 30 April 1998

Omicron Tau Chapter
United States of America
Chartered: 30 April 1998

Omicron Upsilon Chapter
United States of America
Chartered: 1 May 1998

Omicron Phi Chapter
United States of America
Chartered: 2 May 1998

Omicron Chi Chapter
United States of America
Chartered: 13 May 1998

Omicron Psi Chapter
United States of America
Chartered: 14 May 1998

Omicron Omega Chapter
United States of America
Chartered: 14 May 1998

Pi Alpha Chapter
United States of America
Chartered: 15 May 1998

Pi Beta Chapter
United States of America
Chartered: 15 May 1998

Pi Gamma Chapter
United States of America
Chartered: 18 May 1998

Pi Delta Chapter
United States of America
Chartered: 21 May 1998

Pi Epsilon-at-Large Chapter
United States of America
Chartered: 27 May 1998

Pi Zeta Chapter
United States of America
Chartered: 30 May 1998