RVMP Flex Power RVMP-AM-4L1-RV401, Installation Manual

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5. Ensure that the tail pipe extends far enough away so that exhaust gas cannot be trapped beneath
the vehicle, at least 1 inch beyond the perimeter of the vehicle. See the figure below for measuring
the body perimeter of curved vehicles, as well as NFPA 1192 Section 6.4.3 for more details. “Line
A” provides a line beyond which the exhaust termination opening must extend to satisfy the
standard and this is determined by drawing a vertical line through the tangent point determined by
“Line B.” Whereas “Line B” is determined by projecting a 45 degree angle from the horizontal
plane created by the ground to where it is tangent to the vehicle wall surface.
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