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UNITED STATES MERCHANT MARINER VISION STANDARDS1. VISION REQUIREMENTS FOR LICENSED OR CERTIFICATED DECK PERSONNEL

a. Applicants for any deck officer license or qualified deck rating should demonstrate that they have correctable vision to at least 20/40 in each eye and uncorrected vision of at least 20/200 in each eye.1 Applicants for STCW endorsements should meet the same standards. In all cases, the horizontal field of vision should be not less than 100 degrees in each eye. Waivers are not normally granted to an applicant whose corrected vision in the better eye is not at least 20/40. Additional waiver information is contained in paragraph 4 below. See 46 CFR 10.205(d)(2) & (d)(4).

b. These applicants must demonstrate that they have a normal color sense when tested by the 14 plate (which replaces the obsolete 16 plate), 24 plate, or 38 plate Ishihara pseudoisochromatic plates tests, Farnsworth Lantern, or an alternative test approved by the NMC. The use of color sensing lenses to assist these applicants with passing the color vision test is prohibited by 46 CFR 10.205(d)(2). Any questions about acceptable color sense testing methodologies should be directed to the NMC. See 46 CFR 10.205(d)(2).

2. VISION REQUIREMENTS FOR LICENSED OR CERTIFICATED ENGINEERING PERSONNEL, TANKERMAN, OFFSHORE INSTALLATION MANAGER, BARGE SUPERVISOR, BALLAST CONTROL OFFICER AND RADIO OFFICER

a. Applicants for any engineering officer license, qualified engineering rating, offshore installation manager, barge supervisor, ballast control officer, radio officer, or tankerman endorsement should demonstrate that they have correctable vision of at least 20/50 in each eye and uncorrected vision of at least 20/200 in each eye.2 Applicants for STCW endorsements as RFPEW, or for any STCW engineering officer endorsement, should meet the same standards. The horizontal field of vision should be not less than 100 degrees in each eye. Waivers are not normally granted to an applicant whose corrected vision in the better eye is not at least 20/50. Additional waiver information is contained in paragraph 4 below. See 46 CFR 10.205(d)(3) & (d)(4).

b. These applicants are only required to demonstrate that they can distinguish between the colors red, blue, green, and yellow. They may do so by passing the 14 plate (which replaces the obsolete 16 plate), 24 plate, or 38 plate Ishihara pseudoisochromatic plates d. Applicants for deck officer licenses who cannot pass the color vision tests may be considered for a waiver by the NMC for issuance of a license limited to daylight hours only.

Become A US Merchant Mariner visit: http://unitedstatesmerchantmarine.org

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