---
kind: "unit"
title: "40"
title_heading: "Protection of Environment"
key: "chI/subchC/part60/subpartKKKK"
level: "subpart"
label: "Subpart KKKK"
heading: "Standards of Performance for Stationary Combustion Turbines"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/40/chI-subchC-part60-subpartKKKK"
sections_count: 27
---

# Subpart KKKK — Standards of Performance for Stationary Combustion Turbines

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

- [§60.4300. What is the purpose of this subpart?](/cfr/40/60.4300.md)
- [§60.4305. Does this subpart apply to my stationary combustion turbine?](/cfr/40/60.4305.md)
- [§60.4310. What types of operations are exempt from these standards of performance?](/cfr/40/60.4310.md)
- [§60.4315. What pollutants are regulated by this subpart?](/cfr/40/60.4315.md)
- [§60.4320. What emission limits must I meet for nitrogen oxides (NO X )?](/cfr/40/60.4320.md)
- [§60.4325. What emission limits must I meet for NO X if my turbine burns both natural gas and distillate oil (or some other combination of fuels)?](/cfr/40/60.4325.md)
- [§60.4330. What emission limits must I meet for sulfur dioxide (SO 2 )?](/cfr/40/60.4330.md)
- [§60.4331. What are the requirements for operating a stationary temporary combustion turbine?](/cfr/40/60.4331.md)
- [§60.4333. What are my general requirements for complying with this subpart?](/cfr/40/60.4333.md)
- [§60.4335. How do I demonstrate compliance for NO X if I use water or steam injection?](/cfr/40/60.4335.md)
- [§60.4340. How do I demonstrate continuous compliance for NO X if I do not use water or steam injection?](/cfr/40/60.4340.md)
- [§60.4345. What are the requirements for the continuous emission monitoring system equipment, if I choose to use this option?](/cfr/40/60.4345.md)
- [§60.4350. How do I use data from the continuous emission monitoring equipment to identify excess emissions?](/cfr/40/60.4350.md)
- [§60.4355. How do I establish and document a proper parameter monitoring plan?](/cfr/40/60.4355.md)
- [§60.4360. How do I determine the total sulfur content of the turbine's combustion fuel?](/cfr/40/60.4360.md)
- [§60.4365. How can I be exempted from monitoring the total sulfur content of the fuel?](/cfr/40/60.4365.md)
- [§60.4370. How often must I determine the sulfur content of the fuel?](/cfr/40/60.4370.md)
- [§60.4375. What reports must I submit?](/cfr/40/60.4375.md)
- [§60.4380. How are excess emissions and monitor downtime defined for NO X ?](/cfr/40/60.4380.md)
- [§60.4385. How are excess emissions and monitoring downtime defined for SO 2 ?](/cfr/40/60.4385.md)
- [§60.4390. What are my reporting requirements if I operate an emergency combustion turbine or a research and development turbine?](/cfr/40/60.4390.md)
- [§60.4395. When must I submit my reports?](/cfr/40/60.4395.md)
- [§60.4400. How do I conduct the initial and subsequent performance tests, regarding NO X ?](/cfr/40/60.4400.md)
- [§60.4405. How do I perform the initial performance test if I have chosen to install a NO X -diluent CEMS?](/cfr/40/60.4405.md)
- [§60.4410. How do I establish a valid parameter range if I have chosen to continuously monitor parameters?](/cfr/40/60.4410.md)
- [§60.4415. How do I conduct the initial and subsequent performance tests for sulfur?](/cfr/40/60.4415.md)
- [§60.4420. What definitions apply to this subpart?](/cfr/40/60.4420.md)