Versions of 16 CFR 1640.4 - Certification and labeling on LawServer 2024 16 CFR 1640.4 – Certification and labeling 2023 16 CFR 1640.4 – Certification and labeling 2022 16 CFR 1640.4 – Certification and labeling 2021 16 CFR 1640.4 – Certification and labeling