§ 86.084-4 Section numbering; construction.

(a) The model year of initial applicability is indicated by the last two digits of the 5-digit group. A section remains in effect for subsequent model years until it is superseded. The number following the hyphen designates what previous section is replaced by a future regulation. For example, § 86.005-1 applies to model year 2005 and later vehicles and engines until it is superseded. Section 86.016-1 takes effect with model year 2016 and continues to apply until it is superseded; § 86.005-1 no longer applies starting with model year 2016, except as specified by § 86.016-1.