Versions of Kentucky Statutes 189.540 - Regulations for school buses -- Operator required to have commercial driver\'s license with school bus endorsement on LawServer 2024 Kentucky Statutes 189.540 – Regulations for school buses — Operator required to have commercial driver’s license with school bus endorsement 2023 Kentucky Statutes 189.540 – Regulations for school buses — Operator required to have commercial driver’s license with school bus endorsement 2022 Kentucky Statutes 189.540 – Regulations for school buses — Operator required to have commercial driver’s license with school bus endorsement 2021 Kentucky Statutes 189.540 – Regulations for school buses — Operator required to have commercial driver’s license with school bus endorsement 2020 Kentucky Statutes 189.540 – Regulations for school buses — Operator required to have commercial driver’s license with school bus endorsement 2019 Kentucky Statutes 189.540 – Regulations for school buses — Operator required to have commercial driver’s license with school bus endorsement 2017 Kentucky Statutes 189.540 – Regulations for school buses — Operator required to have commercial driver’s license with school bus endorsement