01- 017 C.M.R. ch. 1, § 12
An applicant for a license as a Presiding Judge, Associate Judge, Driver, Charter, Patrol Judge, Starting Gate Driver or Starting Judge must submit evidence of an eye examination, conducted within the last 4 years, indicating a minimum of 20/40 corrected vision in both eyes, or if one eye is blind, at least 20/30 corrected vision in the other eye. Evidence of the eye examination may be submitted by certification by a licensed optometrist or ophthalmologist or may be evidenced by eye examination information presented as part of a current, active United States Trotting Association membership or current, valid motor vehicle driver's license, provided that the eye examination for the United States Trotting Association membership or motor vehicle driver's license was conducted within the last 4 years.
01- 017 C.M.R. ch. 1, § 12