2024 14 CFR 135.91 – Oxygen and portable oxygen concentrators for medical use by passengers

2023 14 CFR 135.91 – Oxygen and portable oxygen concentrators for medical use by passengers

2022 14 CFR 135.91 – Oxygen and portable oxygen concentrators for medical use by passengers

2021 14 CFR 135.91 – Oxygen and portable oxygen concentrators for medical use by passengers

2020 14 CFR 135.91 – Oxygen and portable oxygen concentrators for medical use by passengers

2019 14 CFR 135.91 – Oxygen and portable oxygen concentrators for medical use by passengers

2016 14 CFR 135.91 – Oxygen and portable oxygen concentrators for medical use by passengers

2015 14 CFR 135.91 – Oxygen for medical use by passengers

2014 14 CFR 135.91 – Oxygen for medical use by passengers

2010 14 CFR 135.91 – Oxygen for medical use by passengers

2009 14 CFR 135.91 – Oxygen for medical use by passengers