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Part IV - Personnel Licensing and Training

Canadian Aviation Regulations (CARs) 2011-2

Standard 424 - Table for Colour Perception Requirement 2.39

Types of Plates (pseudo-isochromatic) Edition Plates to be Read Max # Errors
American Optical 18 plates (1378A) 1-18 (include) 3
Ishihara 14 plates 1-11 (include) 1
Ishihara 16 plates 1- 8 (include) 1
Ishihara 24 plates 1-15(include) 2
Ishihara 36 plates 1-21 (include) 3
American Optical 20 plates 1- 6 (include) 0
HRR (2nd. ed)    
*Titmus Vision Tester   ALL 0
*Keystone Orthoscope   ALL 0
*Keystone Telebinocular   ALL 0
*If failed, retest with plates to verify.      
Date modified:
2012-01-23