2024 CFR > Title 47 > Chapter I > Subchapter B > Part 63 > Discontinuance, Reduction, Outage and Impairment
2023 CFR > Title 47 > CHAPTER I > SUBCHAPTER B > PART 63 > Discontinuance, Reduction, Outage and Impairment
2022 CFR > Title 47 > Chapter I > Subchapter B > Part 63 > Discontinuance, Reduction, Outage and Impairment – Discontinuance, Reduction, Outage and Impairment
2021 CFR > Title 47 > Chapter I > Subchapter B > Part 63 > Discontinuance, Reduction, Outage and Impairment – Discontinuance, Reduction, Outage and Impairment