Code specifying vent instructions
Type
ID
Length
Max 7 / Min 1
Codes
<> V40
Standard Ventilation at "--" Degrees (Other than 32 Degrees)
<> VC
Vents Closed to Destination
<> VD40
Diagonal Ventilation at "--" Degrees (Other than 32 Degrees) - Open Vent Each End of Car
<> VDOI
Diagonal Vents on Irons
<> VO
Vents Open to Destination
<> VOI
Vents on Irons
<> VS
Standard Ventilation at 32 Degrees
<> VS10
Standard Ventilation - Substitute Carrier's Protective Service at First Terminal Train Yard where Heaters Are Available and Outside Temperature is 10 Degrees Above Zero or Lower (PPT #619 Rules 385 and 515)
