---
kind: "unit"
title: "40"
title_heading: "Protection of Environment"
key: "chI/subchC/part60/subpartDa"
level: "subpart"
label: "Subpart Da"
heading: "Standards of Performance for Electric Utility Steam Generating Units"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/40/chI-subchC-part60-subpartDa"
sections_count: 13
---

# Subpart Da — Standards of Performance for Electric Utility Steam Generating Units

Title 40 C.F.R. — Protection of Environment › Chapter I — Environmental Protection Agency › Subchapter C — Air Programs › Part 60 — Standards of Performance for New Stationary Sources

## Sections

- [§60.40Da. Applicability and designation of affected facility.](/cfr/40/60.40Da.md)
- [§60.41Da. Definitions.](/cfr/40/60.41Da.md)
- [§60.42Da. Standards for particulate matter (PM).](/cfr/40/60.42Da.md)
- [§60.43Da. Standards for sulfur dioxide (SO 2 ).](/cfr/40/60.43Da.md)
- [§60.44Da. Standards for nitrogen oxides (NO 2 ).](/cfr/40/60.44Da.md)
- [§60.45Da. Alternative standards for combined nitrogen oxides (NO X ) and carbon monoxide (CO).](/cfr/40/60.45Da.md)
- [§60.46Da. Reserved](/cfr/40/60.46Da.md)
- [§60.47Da. Commercial demonstration permit.](/cfr/40/60.47Da.md)
- [§60.48Da. Compliance provisions.](/cfr/40/60.48Da.md)
- [§60.49Da. Emission monitoring.](/cfr/40/60.49Da.md)
- [§60.50Da. Compliance determination procedures and methods.](/cfr/40/60.50Da.md)
- [§60.51Da. Reporting requirements.](/cfr/40/60.51Da.md)
- [§60.52Da. Recordkeeping requirements.](/cfr/40/60.52Da.md)