Code of Federal Regulations (Last Updated: November 8, 2024) |
Title 40 - Protection of Environment |
Chapter I - Environmental Protection Agency |
SubChapter C - Air Programs |
Part 86 - Control of Emissions from New and in-Use Highway Vehicles and Engines |
Subpart N - Exhaust Test Procedures for Heavy-duty Engines |
§ 86.1304-90 - Section numbering; construction.
Latest version.
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(a)
Section numbering. The model year of initialapplicability is indicated by the section number. The two digits following the hyphen designate the first model year for which a section is applicable. The section continues to apply to subsequent model years unless a later model year section is adopted.Example: Section 86.13xx-2004 applies to the 2004 and subsequent model years. If a § 86.13xx-2007 is promulgated it would apply beginning with the 2007 model year; § 86.13xx-2004 would apply to model years 2004 through 2006.
(b) A section reference without a model year suffix refers to the section applicable for the appropriate model year.