The device will also be evaluated with respect to:
(a) The degree of sensitivity of device effectiveness to variances in installation, operation and maintenance;
(b) The adequacy of manufacturer-furnished instructions for minimizing variances in installation, operation and maintenance;
(c) The extent to which device installation or use, or the effects of such installation or use, relate to Federal emission control regulations;
(d) Effects on the performance, safety, or occupant comfort of the retrofitted vehicle, and on that of other vehicles; and
(e) The relationship between total cost of ownership of the device (purchase price plus maintenance costs) and the cost savings realizable from its fuel economy effects.
authority: Sec. 511, Motor Vehicle Information and Cost Savings Act, as amended (sec. 301, Pub. L. 94-163, 89 Stat. 915 (
15 U.S.C. 2011))
source: 44 FR 17946, Mar. 23, 1979, unless otherwise noted.
cite as: 40 CFR 610.23