Husqvarna CS 2186 Operator's Manual page 4

CONTENTS
You will find the following labels on your chain saw:
EPA I
EPA II
The Emissions Compliance Period referred to on the
Emission Compliance label indicates the number of operating
hours for which the engine has been shown to meet Federal
emissions requirements. Category C = 50 hours, B = 125
hours, and A = 300 hours.
Jonsered has a policy of continuous product development
and therefore reserves the right to modify the design and
appearance of products without prior notice.
4 –
Canadian