---
kind: "unit"
title: "40"
title_heading: "Protection of Environment"
key: "chI/subchC/part52/subpartV"
level: "subpart"
label: "Subpart V"
heading: "Maryland"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/40/chI-subchC-part52-subpartV"
sections_count: 22
---

# Subpart V — Maryland

Title 40 C.F.R. — Protection of Environment › Chapter I — Environmental Protection Agency › Subchapter C — Air Programs › Part 52 — Approval and Promulgation of Implementation Plans

## Sections

- [§52.1070. Identification of plan.](/cfr/40/52.1070.md)
- [§52.1071. Classification of regions.](/cfr/40/52.1071.md)
- [§52.1072. Reserved](/cfr/40/52.1072.md)
- [§52.1073. Approval status.](/cfr/40/52.1073.md)
- [§52.1074. Reserved](/cfr/40/52.1074.md)
- [§52.1075. Base year emissions inventory.](/cfr/40/52.1075.md)
- [§52.1076. Control strategy plans for attainment and rate-of-progress: Ozone.](/cfr/40/52.1076.md)
- [§52.1077-1079. Reserved](/cfr/40/52.1077-1079.md)
- [§52.1080. Photochemical Assessment Monitoring Stations (PAMS) Program.](/cfr/40/52.1080.md)
- [§52.1081. Control strategy: Particulate matter.](/cfr/40/52.1081.md)
- [§52.1082. Determinations of attainment.](/cfr/40/52.1082.md)
- [§52.1083. Reserved](/cfr/40/52.1083.md)
- [§52.1084. Interstate pollutant transport provisions; What are the FIP requirements for decreases in emissions of nitrogen oxides?](/cfr/40/52.1084.md)
- [§52.1085. Interstate pollutant transport provisions; What are the FIP requirements for decreases in emissions of sulfur dioxide?](/cfr/40/52.1085.md)
- [§52.1086-52.1099. Reserved](/cfr/40/52.1086-52.1099.md)
- [§52.1100. Original identification of plan section.](/cfr/40/52.1100.md)
- [§52.1101-52.1109. Reserved](/cfr/40/52.1101-52.1109.md)
- [§52.1110. Small business stationary source technical and environmental compliance assistance program.](/cfr/40/52.1110.md)
- [§52.1111-52.1115. Reserved](/cfr/40/52.1111-52.1115.md)
- [§52.1116. Significant deterioration of air quality.](/cfr/40/52.1116.md)
- [§52.1117. Control strategy: Sulfur oxides.](/cfr/40/52.1117.md)
- [§52.1118. Reserved](/cfr/40/52.1118.md)