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CFR > Title 40 - Protection of Environment > CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY > SUBCHAPTER Q—ENERGY POLICY (Parts 600–611) > PART 600—FUEL ECONOMY AND CARBON-RELATED EXHAUST EMISSIONS OF MOTOR VEHICLES > SUBPART A—Fuel Economy Regulations for 1977 and Later Model Year Automobiles—General Provisions (§600.001-08 to §600.011-93) > 600.004-77—Section numbering, construction.

CFR

600.004-77—Section numbering, construction.

(a) The model year of initial applicability is indicated by the section number. The two digits following the hyphen designate the first model year for which a section is effective. A section is effective until superseded.

Code of Federal Regulations

Example: Section 600.111-78 applies to the 1978 and subsequent model years until superseded. If a § 600.111-81 is promulgated, it would take effect beginning with the 1981 model year; § 600.111-78 would apply to model years 1978 through 1980.
(b) A section reference without a model year suffix refers to the section applicable for the appropriate model year.

Code of Federal Regulations

[59 FR 39651, Aug. 3, 1994]
(a) The model year of initial applicability is indicated by the section number. The two digits following the hyphen designate the first model year for which a section is effective. A section is effective until superseded.

Code of Federal Regulations

Example: Section 600.111-78 applies to the 1978 and subsequent model years until superseded. If a § 600.111-81 is promulgated, it would take effect beginning with the 1981 model year; § 600.111-78 would apply to model years 1978 through 1980.
(b) A section reference without a model year suffix refers to the section applicable for the appropriate model year.

Code of Federal Regulations

[59 FR 39651, Aug. 3, 1994]
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