Advisory Page‎ > ‎

COS History / Logos


The Circle of Sisters (COS) Women’s Convention of Narcotics Anonymous was created by  and for the women of Narcotics Anonymous who had a vision of an annual convention for the women of our fellowship in Portland, Oregon.

The first convention held in February 1998 was named the Pacific Northwest Women’s Convention of Narcotics Anonymous #1, because the organizers anticipated the convention would be an ongoing tradition in the Pacific Northwest. However, COS quickly outgrew its origins, in the second year and the words ‘Pacific Northwest were deleted. In its third year, COS ventured far from its roots, all the way to Houston, Texas.

The COS Advisory Committee was established at COS III to provide continuity as Circle of Sisters grew and traveled further from its roots.

COS IV evolved into an international NA convention when it moved to Vancouver, Canada.

The first version of the Guidelines was approved at COS IV. In 2016, the COS Advisory voted to be the executive body of Circle of Sister to ensure the consistency of COS guidelines remain intact

No addict will be turned away from any NA meeting in accordance with our Third Tradition. However, convention activities are restricted to women only.

Event Dates Location Hosting NA, service body Theme
COS I Feb. 20-22, 1998 Portland, Oregon Portland Area Service Committee Unity and Diversity Through Recovery
COS II Feb. 26-28, 1999 Seattle, Washington Everett Area Service Committee If you want what we have …
COS III March 10-12, 2000 Houston, Texas Northside Area Service Committee The Very Essence
COS IV March 2-4, 2001 Vancouver, British Columbia British Columbia Regional Service Committee Anything is Possible
COS V Feb. 15-17, 2002 San Jose, California Northern California Regional Service Committee I Believe in Miracles, for I Am One
COS VI Feb. 28 - Mar. 2, 2003 Bloomington, Minnesota South Suburban Fireside Area Service Committee I am my Sister’s Keeper
COS VII Feb. 27-29, 2004 Seattle, Washington Seattle Area Service Committee Leap of Faith
COS VIII Feb. 18-21, 2005 Brooklyn, New York Brooklyn, New York The Wind Beneath My Wings
COS IX Feb. 24-26, 2006 Boise, Idaho Treasure Valley Area Service Committee Sharing Experience Strength and Hope
COS X Feb. 23-25,2007 Dallas/Ft Worth, Texas Dallas/Ft Worth, Texas Circle of Hope
COS XI Feb. 1-3, 2008 Chicago, Illinois Chicagoland Region Service Committee Sisters on a Spiritual Journey
COS XII March 3-6, 2009 Woodland Hills, California San Fernando Valley Area A Spirit Beyond Our Dreams
COS XIII Feb, 26-28, 2010 Southampton, Bermuda Bermuda Area H.O.P.E. Becomes Reality
COS XIV Feb. 11-13, 2011 Richmond, Virginia Richmond, Virginia Area You Can't Stop A Circle Of Sisters
COS XV Feb. 24-26, 2012 Portland, Oregon Portland Area Service Committee Freedom Through the Steps
COS XVI March 15-17, 2013 Tulsa OK Eastern Area Service Committee of Oklahoma Stepping into The Circle of Recovery
COS XVII March 7-9, 2014 St. Louis, Missouri St. Louis Hope & Endless Possibilities
COS XVIII Feb 27-Mar 1, 2015 Los Angeles, Ca Greater LA Area Diversity is Our Strength
COS XIX Feb 24-26, 2016 Dallas TX Dallas Area See a Miracle
COS XX Feb. 17-19, 2017 Chicago Ill Chicagoland Region Standing on Spiritual Principals
COS XXI Feb. 16-18, 2018 Burlingame Ca Northern California Regional Service Committee Changing the World, One Sister at a Time
COS XXII April 19 – 21,2019 New Orleans La. New Orleans Area When the Mask goes… A Miracle happens
COS XXIII Feb. 28 - Mar. 1, 2020 Detroit Mi. Detroit West Area  Surviving our Emotions