GT-225 EMISSION CONTROL
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© 04/21 ECHO Incorporated
EMISSION CONTROL (EXHAUST & 
EVAPORATIVE)
CARB and EPA Emissions Control Information
The emission control system for 
the engine is EM (engine 
modification) and, if the second to 
last character of the Engine Family 
on the Emission Control 
Information label (sample below) is 
“B”, “C”, “K”, or “T”, the emission 
control system is EM and TWC 
(3-way catalyst). The fuel tank/fuel 
line emission control system is EVAP (evaporative emissions). Evaporative 
emissions for California models are only applicable to fuel tanks and fuel 
feed lines.
An Emission Control Label is 
located on the engine. (This is an 
EXAMPLE ONLY, information on 
label varies by engine FAMILY).
Product Emission Durability (Emission Compliance Period)
The 50 or 300 hour emission compliance period is the time span selected by 
the manufacturer certifying the engine emissions output meets applicable 
emissions regulations, provided that approved maintenance procedures are 
followed as listed in the Maintenance Section of this manual.