Working on a wildland fire incident, you are responsible for the safety of yourself and those around you. At high exposure levels, smoke inhalation can jeopardize this safety by impairing your decision-making abilities. If your health is impaired your judgment and decision making skills may also be impaired. This condition can put those around you at risk. This guidebook addresses wildland fire personnel smoke exposure in three sections: Smoke Constituents & Symptoms - What is in wildland fire smoke; Personnel Risk - What positions are frequently at risk from wildland fire smoke exposure; Mitigating Exposure - How to reduce or eliminate smoke exposure. This guide covers situations in both wild and prescribed fires and is a more detailed supporting document for the National Wildland Fire Coordinating Group’s module ‘Smoke: Know the Risks’. Please note that this guidebook is a draft document and a work in progress. The authors feel the guidance information within will be useful to wildland fire personnel, however in the future content may be added or edited, and page numbers may change.