40 CFR 49.11 : Protection Of Environment (§ 1.1 To Parts 1851-1899) — (§ 1.1 To Appendix To Subpart M Of Part 49) — Environmental Protection Agency (§ 1.1 To Appendix To Subpart M Of Part 49) — Grants And Other Federal Assistance (§ 33.101 To Appendix To Subpart M Of Part 49) — Indian Country: Air Quality Planning And Management (§ 49.1 To Appendix To Subpart M Of Part 49) — Tribal Authority (§ 49.1 To §§ 49.23-49.50) — Actions under section 301(d)(4) authority.