Most nonprofit organizations operate on a shoestring budget, and many would have to close their doors without the help of devoted volunteers. Still, news sources have reported many horror stories about strangers — or worse, people in trusted positions — who have harmed children or abused elderly persons. As a result, organizations are faced with a growing challenge — how to accomplish their mission while protecting the vulnerable population served. At the same time, organizations that rely on volunteers must perform a delicate balancing act — how to properly screen out bad actors without alienating dedicated, privacy-conscious volunteers. This guide from Privacy Rights Clearinghouse seeks to explore the expanding world of volunteer screening, identify relevant laws as well as fundamental privacy protections, and offer suggestions for organizations and volunteers. References and additional resources are included at the end of the guide.