| The first four documents are updated quadrennially, with the fifth being updated biennially. |
| The Gray Panthers convened biennially, attracting delegates from as many as 70 local chapters. |
| The board shall by rule prescribe continuing education requirements, not to exceed 30 hours biennially, as a condition for renewal of a license. |
| Since hoary marmots reproduce biennially, half the females are fertile and half nonfertile during any given year. |
| The Board reviews the implementation of those decisions and the secretariat reports on their implementation biennially to the General Assembly. |
| From then, the event has been held biennially since 1984 in a best-of-five tournament over a single day. |
