medical examiner's certificate · Any driver who does not satisfy, with the worse eye, either the distant visual acuity standard with corrective lenses or the field of vision standard, or both

For medical examiner's certificate, age / service condition is Any driver who does not satisfy, with the worse eye, either the distant visual acuity standard with corrective lenses or the field of vision standard, or both; occupation / regulator is commercial motor vehicle driver (FMCSA); valid for is 12 months; citation is 49 CFR 391.45, recorded from its source on 2026-08-11.

Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.

What the source says

(f) Any driver who does not satisfy, with the worse eye, either the distant visual acuity standard with corrective lenses or the field of vision standard, or both, in § 391.41(b)(10)(i) and who has obtained a medical examiner's certificate under the standards in § 391.44 , if such driver's most recent medical examination and certification as qualified to drive did not occur during the preceding 12 months;

— ecfr.gov, retrieved 2026-08-11

Source

• ecfr.govhttps://www.ecfr.gov/current/title-49/subtitle-B/chapter-III/subchapter-B/part-391/subpart-E/section-391.45

Last verified against source: 2026-08-11. Due for re-check by 2027-08-11. This page as Markdown · OKF bundle · full dataset as JSON.