eCFR Reference Browser

---

title: "40 CFR §90.403"

source: "https://www.ecfr.gov/current/title-40/section-90.403"

title_number: "40"

volume_number: "22"

chapter_number: "Unknown"

subchapter_code: "C"

subchapter_subject: "AIR PROGRAMS (CONTINUED)"

part_code: "90"

part_subject: "CONTROL OF EMISSIONS FROM NONROAD SPARK-IGNITION ENGINES AT OR BELOW 19 KILOWATTS"

subpart_code: "E"

subpart_subject: "Gaseous Exhaust Test Procedures"

section_number: "90.403"

section_subject: "Symbols, acronyms, and abbreviations."

cfr_reference: "40 CFR 90.403"

title_name: "Title 40"

title_subject: "Protection of Environment"

parts_covered: "Parts 87 to 95"

revised_date: "Revised as of July 1, 2017"

publication_date: "As of July 1, 2017"

contains_description: "Containing a codification of documents of general applicability and future effect"

publication_info: "Published by the Office of the Federal Register National Archives and Records Administration as a Special Edition of the Federal Register"

---

(a)The acronyms and abbreviations in § 90.5 apply to this subpart.

(b)The symbols in Table 1 in Appendix A to Subpart D apply to this subpart.

§90.403 - Symbols, acronyms, and abbreviations.