2023 Washington Code 28A.410.278 – Residency principal certificates — Principal preparation program requirements
2022 Washington Code 28A.410.278 – Residency principal certificates–Principal preparation program requirements
2020 Washington Code 28A.410.278 – Residency principal certificates — Principal preparation program requirements
2019 Washington Code 28A.410.278 – Residency principal certificates — Principal preparation program requirements
2018 Washington Code 28A.410.278 – Teacher evaluation research and evaluation requirements — Requirements for residency principal certificates, teacher preparation programs, and in-service training or continuing education
2016 Washington Code 28A.410.278 – Teacher evaluation research and evaluation requirements–Requirements for residency principal certificates, teacher preparation programs, and in-service training or continuing education
2015 Washington Code 28A.410.278 – Teacher evaluation research and evaluation requirements–Requirements for residency principal certificates, teacher preparation programs, and in-service training or continuing education
2014 Washington Code 28A.410.278 – Teacher evaluation research and evaluation requirements — Requirements for residency principal certificates, teacher preparation programs, and in-service training or continuing education
2013 Washington Code 28A.410.278 – Teacher evaluation research and evaluation requirements — Requirements for residency principal certificates, teacher preparation programs, and in-service training or continuing education