The 80% by 2018 campaign is an effort by the National Colorectal Cancer Roundtable (NCCRT) through the American Cancer Society (ACS) to reach the goal of having 80 percent of adults age 50 or older regularly screened for colorectal cancer. In 2015, NCCRT released a communications guidebook to help organizations work towards this goal. The summary provides evaluation guidance for organizations that have adapted the tested messaging and other recommendations presented in the guidebook.