§ 1060.240 How do I demonstrate that my emission family complies with evaporative emission standards?
(a) For purposes of certification, your emission family is considered in compliance with an evaporative emission standard in subpart B of this part if you do either of the following:
(1) You have test results showing a certified emission level from the fuel tank or fuel line (as applicable) in the family are at or below the applicable standard.
(2) You comply with design specifications as specified in paragraphs (d) through (f) of this section.
(b) Your emission family is deemed not to comply if any fuel tank or fuel line representing that family has an official emission result above the standard.
(c) Round each official emission result to the same number of decimal places as the emission standard.
(d) You may demonstrate for certification that your emission family complies with the fuel tank permeation standards specified in § 1060.103 with any of the following control technologies:
(1) A coextruded high-density polyethylene fuel tank with a continuous ethylene vinyl alcohol barrier layer (with not more than 40 molar percent ethylene) making up at least 2 percent of the fuel tank's overall wall thickness with any of the following gasket and fuel-cap characteristics: