CFR › Title 14 › Part 63 › §63.1714 CFR §63.17Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy link(a)Tests prescribed by or under this part are given at times and places, and by persons, designated by the Administrator.(b)The minimum passing grade for each test is 70 percent.