2024 9 CFR 3.6 – Primary enclosures

2023 9 CFR 3.6 – Primary enclosures

2022 9 CFR 3.6 – Primary enclosures

2021 9 CFR 3.6 – Primary enclosures

2020 9 CFR 3.6 – Primary enclosures

2019 9 CFR 3.6 – Primary enclosures

2016 9 CFR 3.6 – Primary enclosures

2015 9 CFR 3.6 – Primary enclosures

2014 9 CFR 3.6 – Primary enclosures

2010 9 CFR 3.6 – Primary enclosures

2009 9 CFR 3.6 – Primary enclosures