In April 1999, 65 use-of-force experts from across Canada and the United States met at the Ontario Police College to address police use-of-force issues. The result was a framework describing the use-of-force process that can be used by police services across Canada. Widespread implementation of the framework will ensure unprecedented consistency in training on use-of-force situations. Previous models of police use-of-force from the 1970’s and 1980’s are critiqued, suggesting that linear models of use-of-force were inappropriate for reflecting the dynamic nature of volatile situations. The Ontario Use-of-Force Options Model from 1993 is presented, which integrated both use-of-force options and a generic decisionmaking process. The success of the Ontario model prompted the development of the nationwide use-of-force framework based on four main criteria: (1) it should be easy to understand visually; (2) it should incorporate a nonlinear, dynamic perspective; (3) it should be easy for the public to understand; and (4) it should use consistent language. By October 2000, all 65 participants agreed on the use-of-force graphic and accompanying text developed by its working group; it was endorsed by the Canadian Association of Chiefs of Police as the national framework for police use-of-force. A brief description of the key components of the national framework is offered, including a description of the six key principles underlying the framework. Figures