(2007-present)
| Year | Date | Location | Downloads |
| 2026 | January 14-16 | Hilton Portland | 2026 Minutes/Treasurer Report |
| 2025 | January 15-17 | Hilton Portland | 2025 Proceedings |
| 2024 | January 10-12 | Hilton Portland | 2024 Proceedings |
| 2023 | January 11-13 | Hilton Portland | 2023 Proceedings |
| 2022 | January 12-14 | Hilton Portland | 2022 Proceedings |
| 2021 | January 13-15 | Hilton Portland | 2021 Proceedings |
| 2020 | January 8-10 | Hilton Portland | 2020 Proceedings |
| 2019 | January 9-11 | Hilton Portland | 2019 Minutes/Treasurer Report 2019 Proceedings |
| 2018 | January 10-12 | Hilton Portland | 2018 Minutes/Treasurer Report 2018 Proceedings |
| 2017 | January 11-13 | Hilton Portland | 2017 Minutes 2017 Proceedings |
| 2016 | January 13-15 | Hilton Portland | 2016 Minutes 2016 Proceedings |
| 2015 | January 14-16 | Hilton Portland | 2015 Minutes 2015 Proceedings |
| 2014 | January 8-10 | Hilton Portland | 2014 Minutes 2014 Proceedings |
| 2013 | January 9-11 | Hilton Portland | 2013 Minutes 2013 Proceedings |
| 2012 | January 11-13 | Hilton Portland | 2012 Minutes 2012 Proceedings |
| 2011 | January 12-14 | Hilton Portland | 2011 Minutes 2011 Proceedings |
| 2010 | January 13-15 | Hilton Portland | 2010 Minutes 2010 Proceedings |
| 2009 | January 14-16 | Hilton Portland | 2009 Minutes 2009 Proceedings |
| 2008 | January 9-11 | Hilton Portland | 2008 Minutes 2008 Proceedings |
| 2007 | January 10-12 | Hilton Portland | |
2006 | January 11-13 | Hilton Portland | |
| 2005 | January 5-7 | Hilton Portland | |
| 2004 | January 14-16 | Hilton Portland | |
| 2003 | January 15-17 | Hilton Portland | |
| 2002 | January 9-11 | Hilton Portland | |
| 2001 | January 10-12 | Hilton Portland | |
| 2000 | January 5-7 | Hilton Portland | |
| 1999 | January 6-8 | Hilton Portland | |
| 1998 | January 7-9 | Hilton Portland | |
| 1997 | January 8-10 | Hilton Portland | |
| 1996 | January 10-12 | Hilton Portland | |
| 1995 | January 11-13 | Hilton Portland | |
| 1994 | January 12-14 | Hilton Portland | |
| 1993 | January 13-15 | Hilton Portland | |
| 1992 | January 8-10 | Hilton Portland | |
1991 | January 9-11 | Hilton Portland | |
| 1990 | January 10-12 | Hilton Portland | |
| 1989 | January 11-13 | ||
| 1988 | 1988 Proceedings | ||
| 1987 | 1987 Proceedings | ||
| 1986 | 1986 Proceedings | ||
| 1985 | 1985 Proceedings | ||
| 1984 | 1984 Proceedings | ||
| 1983 | 1983 Proceedings | ||
| 1982 | 1982 Proceedings | ||
| 1981 | 1981 Proceedings | ||
| 1980 | 1980 Proceedings | ||
| 1979 | 1979 Proceedings | ||
| 1978 | 1978 Proceedings | ||
| 1977 | 1977 Proceedings | ||
| 1976 | 1976 Proceedings | ||
| 1975 | 1975 Proceedings | ||
| 1974 | 1974 Proceedings | ||
| 1973 | 1973 Proceedings | ||
| 1972 | 1972 Proceedings | ||
| 1971 | 1971 Proceedings | ||
| 1970 | 1970 Proceedings | ||
| 1969 | 1969 Proceedings | ||
| 1968 | 1968 Proceedings | ||
| 1967 | 1967 Proceedings | ||
| 1966 | 1966 Proceedings | ||
| 1965 | 1965 Proceedings | ||
| 1964 | 1964 Proceedings | ||
| 1963 | 1963 Proceedings |