CFR › Title 9 › Part 301 › §301.19 CFR §301.1Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy linkFor purposes of this chapter and unless otherwise specifically provided by regulation or required in the context of particular regulations:(a)Terms have the meanings set forth in this part;(b)The singular form also imports the plural, and the masculine form also imports the feminine and vice versa.