Some schools use results from the MAP® Growth™ interim assessments from Northwest Evaluation Association® (NWEA®) in a number of high-stakes ways. These include as a component of their teacher evaluation systems, to determine whether a student advances to the next grade, or as an indicator for student readiness for certain programs or interventions (such as special education or gifted and talented programs). Therefore, guidance is needed about how to protect the integrity of the testing process and the test results. NWEA offers these guidelines based on their current research and experience with school districts using NWEA's tests for high-stakes purposes. These recommendations provide school leaders and test administrators with guidance about key issues that should be considered when using MAP Growth test results from NWEA as a factor in high-stakes decisions about schools, educators, or students. These recommendations should also be viewed as important testing practices even if test results are not used for high-stakes purposes. These recommendations will help to improve the overall reliability and validity of student test scores. NWEA recommends that schools or districts should strongly consider implementing three broad policies: (1) Schools or districts should develop a written policy at the start of the year that clearly outlines expectations for teachers and students throughout the testing process; (2) These policies should be understood by all teachers prior to the first test administration, allowing teachers the opportunity to seek clarifications about the testing policies, which may be different than when the NWEA assessments were used in a low-stakes capacity; and (3) Consistency is the key. These policies should be enforced at all test administration periods and should be the same for all teachers in the school.