Colour vision (recognition of traffic signal colours)
What is the standard, as the regulation states it for Colour vision (recognition of traffic signal colours)?
For Colour vision (recognition of traffic signal colours), standard, as the regulation states it is the ability to recognize the colors of traffic signals and devices showing standard red, green, and amber; paragraph is (b)(10)(i); regulation section is 49 CFR 391.41, recorded from its source on 2026-08-31; source re-checked 2026-09-15.
(10) (i) Has distant visual acuity of at least 20/40 (Snellen) in each eye without corrective lenses or visual acuity separately corrected to 20/40 (Snellen) or better with corrective lenses, distant binocular acuity of at least 20/40 (Snellen) in both eyes with or without corrective lenses, field of vision of at least 70° in the horizontal meridian in each eye, and the ability to recognize the colors of traffic signals and devices showing standard red, green, and amber; or
— ecfr.gov, retrieved 2026-08-31
- Disqualifying condition or standard
- Colour vision (recognition of traffic signal colours) our reading
- Standard, as the regulation states it
- the ability to recognize the colors of traffic signals and devices showing standard red, green, and amber verified
- Paragraph
- (b)(10)(i) our reading
- Regulation section
- 49 CFR 391.41
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.
Source
- ecfr.govhttps://www.ecfr.gov/current/title-49/subtitle-B/chapter-III/subchapter-B/part-391/subpart-E/section-391.41