Volunteer Angler Report Card. Since 1979, anglers have been asked to keep records on fishing trips—stream or lake visited, time spent fishing, fish species caught, lengths of fish—to help park managers understand fisheries status and track changes in specific populations.When purchasing a Yellowstone National Park fishing permit, you will be provided with a Volunteer Angler Report (VAR) card. The card should be completed for each trip to a single stream or lake—please don't mix information from multiple locations—and can be dropped off at a backcountry office, ranger station or visitor center, or returned by mail (postage paid).