2024 49 CFR 661.12 – Certification requirement for procurement of buses, other rolling stock and associated equipment
2023 49 CFR 661.12 – Certification requirement for procurement of buses, other rolling stock and associated equipment
2022 49 CFR 661.12 – Certification requirement for procurement of buses, other rolling stock and associated equipment
2021 49 CFR 661.12 – Certification requirement for procurement of buses, other rolling stock and associated equipment
2020 49 CFR 661.12 – Certification requirement for procurement of buses, other rolling stock and associated equipment
2019 49 CFR 661.12 – Certification requirement for procurement of buses, other rolling stock and associated equipment
2016 49 CFR 661.12 – Certification requirement for procurement of buses, other rolling stock and associated equipment
2015 49 CFR 661.12 – Certification requirement for procurement of buses, other rolling stock and associated equipment
2014 49 CFR 661.12 – Certification requirement for procurement of buses, other rolling stock and associated equipment
2010 49 CFR 661.12 – Certification requirement for procurement of buses, other rolling stock and associated equipment
2009 49 CFR 661.12 – Certification requirement for procurement of buses, other rolling stock and associated equipment