This book provides a summary of information regarding national means restriction policies/strategies & national/provincial intentional overdose prevention policies/strategies & their effectiveness. Policies/strategies that focus on children, youth, & young adults were of particular interest. Part One of this report presents an overview of national means restriction strategies/policies & Part Two focuses on intentional overdose prevention strategies/policies at the national & provincial levels, examining the evidence for the effectiveness of these strategies. (134 refs.)