Home › CFR › Title 30 › Part 7 › §7.8530 CFR §7.85 — Critical characteristics.Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy linkThe following critical characteristics shall be inspected or tested on each diesel engine to which an approval marking is affixed—(a)Fuel rate is set properly; and(b)Fuel injection pump adjustment is sealed, if applicable.