This report presents a multi-year study of how states are implementing their state college- and career-readiness standards. In this report, the Southern Regional Education Board's (SREB's) Benchmarking State Implementation of College- and Career-Readiness Standards project studied state efforts in 2014-15 and 2015-16 to foster effective professional learning for educators on state college- and career-readiness standards in English language arts and math, K-12. SREB uses the findings of this study to provide state leaders with actionable feedback on and support for their work, to inform the continuous improvement of state education policies and practice. Findings include: (1) Establish clear expectations for high-quality professional learning for all educators on the state college- and career-readiness standards; (2) Provide guidance, technical assistance and other support for local efforts; and (3) Offer professional learning. The following are appended: (1) Project overview; (2) Methodology; and (3) Look-fors. (Tamika Ball, research associate, Benchmarking College- and Career-Readiness Standards, contributed to data collection and document preparation of this report.)