Versions of 30 CFR Part 820 - Special Permanent Program Performance Standards--Anthracite Mines in Pennsylvania on LawServer 2024 30 CFR Part 820 – Special Permanent Program Performance Standards–Anthracite Mines in Pennsylvania 2023 30 CFR PART 820 – SPECIAL PERMANENT PROGRAM PERFORMANCE STANDARDS – ANTHRACITE MINES IN PENNSYLVANIA 2022 30 CFR Part 820 – Special Permanent Program Performance Standards – Anthracite Mines in Pennsylvania 2021 30 CFR Part 820 – Special Permanent Program Performance Standards – Anthracite Mines in Pennsylvania 2020 30 CFR Part 820 – Special Permanent Program Performance Standards-Anthracite Mines in Pennsylvania