Spill response in inland areas offers a series of challenges. Response objectives, priorities, and strategies are defined and communicated to responders through an incident command organization. Highlighted issues often include priorities and protection of downstream water users, populated areas, parks, and fisheries. Inland waters also can be highly variable, from marshes to fast-flowing streams, rivers, and lakes.  Special considerations, strategies and tactics are discussed for all of these settings, using examples from actual spills. Courses are typically tailored to the environments and conditions that the client may experience (tropical, arctic, semi-arid, etc.).