When something goes wrong, it becomes apparent that a position or policy is needed, either to decide what to do now, or to prevent the situation from recurring. So policies determine action and set boundaries beyond which one cannot go. Policies clarify responsibilities and define lines of communication and accountability. Policies provide a structure for sound management. Since they often identify the 'what' and sometimes even the 'how,' they can bring about program improvements and increase effectiveness.
Policies ensure continuity over time and from staff to staff.
In this sense, policies endure. They promote equity and standardization. Policies establish values, beliefs and directions for volunteer involvement. They connect the volunteer program to the larger organization and its mission. Policies can be a source of pride and satisfaction for managers of volunteers in a well-run program.