2024 14 CFR 1251.580 – Direct threat

2023 14 CFR 1251.580 – Direct threat

2022 14 CFR 1251.580 – Direct threat

2021 14 CFR 1251.580 – Direct threat

2020 14 CFR 1251.580 – Direct threat

2019 14 CFR 1251.580 – Direct threat

2016 14 CFR 1251.580 – Direct threat

2015 14 CFR 1251.580 – Direct threat