Basic Catalyst & Housing
| Engine Type | Source | Standard Per Final Ruling |
|---|---|---|
|
Spark Ignited (SI) 2 Stroke Lean Burn |
Area Source Major Source (100‐500 HP) |
Management Practices 225 ppmv CO |
|
Spark Ignited (SI) 4 Stroke Lean Burn |
Area / Major Sources (>500 HP) Major Source (100‐500 HP) |
47 ppmv CO or 93% Reduction 47 ppmv CO |
|
Spark Ignited (SI) 4 Stroke Rich Burn |
Area Source (>500 HP) Major Source (100‐500 HP) |
2.7 % ppmv CH2O or 76% CH2O Red. 10.3 ppmv CH2O |
|
Compression Ignited (CI) Non‐Emergency 100‐300 HP |
Area and Major Sources | 230 ppmv CO |
|
Compression Ignited (CI) Non‐Emergency 301‐500 HP |
Area and Major Sources | 49 ppmv CO or 70% CO Reduction |
|
Compression Ignited (CI) Non‐Emergency >501 HP |
Area and Major Sources | 23 ppmv CO or 70% CO Reduction |
|
Compression Ignited (CI) Emergency |
Area and Major Sources | Management Practice |
