Versions of 29 CFR Part 1989 - Procedures for the Handling of Retailiation Compaints Under the Taxpayer First Act (Tfa) on LawServer 2024 29 CFR Part 1989 – Procedures for the Handling of Retailiation Compaints Under the Taxpayer First Act (Tfa) 2023 29 CFR PART 1989 – PROCEDURES FOR THE HANDLING OF RETAILIATION COMPAINTS UNDER THE TAXPAYER FIRST ACT (TFA) 2022 29 CFR Part 1989 – Procedures for the Handling of Retailiation Compaints Under the Taxpayer First Act (TFA)