CFR > Title 40 - Protection of Environment > CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY > SUBCHAPTER C—AIR PROGRAMS (Parts 50–99) > PART 91—CONTROL OF EMISSIONS FROM MARINE SPARK-IGNITION ENGINES > SUBPART E—Gaseous Exhaust Test Procedures (§91.401 to §91.427) > 91.403—Symbols and abbreviations.

91.403—Symbols and abbreviations.

(a) The abbreviations in § 91.5 apply to this subpart.
(b) The symbols in Table 1 in appendix A to subpart D apply to this subpart.