Public policies can be designed to limit access to substances and decrease the problems associated with their use.
Many laws designed to reduce the problems of alcohol, tobacco and other drug use are often not enforced or not consistently enforced.
The public must know the magnitude of the problem, as well as be informed of the laws and prevention strategies.
Public perceptions about alcohol, tobacco and other drugs play a significant role.
Groups of people can have a greater impact than individuals working independently.