The Smarter Balanced Assessment Consortium (Smarter Balanced) strives to provide every student with a positive and productive assessment experience, generating results that are a fair and accurate estimate of each student's achievement. Further, Smarter Balanced is building on a framework of accessibility for participating students, including English learners (ELs), students with disabilities, and ELs with disabilities, but not limited to those groups. In the process of developing its next-generation assessments to measure students' knowledge and skills as they progress toward college and career readiness, Smarter Balanced recognized that the validity of assessment results depends on each and every student having appropriate universal tools, designated supports, and accommodations when needed based on the constructs being measured by the assessment. This document was developed for the Smarter Balanced members to guide the selection and administration of universal tools, designated supports, and accommodations. These Guidelines describe the Smarter Balanced universal tools, designated supports, and accommodations available for the Smarter Balanced assessments at this time. The specific universal tools, designated supports, and accommodations approved by Smarter Balanced may change in the future if additional tools, supports, or accommodations are identified for the assessments based on member experience and research findings. The Consortium has established a standing committee, including representatives from Governing members, who review suggested additional universal tools, designated supports, and accommodations to determine whether changes are warranted.