International classification of passenger assistance

WCHR
(WHEEL CHAIR RAMP)
Passenger who can walk inside the aircraft and up and down the stairs, but who needs a wheelchair for moving for long distances inside the terminal
WCHS
(WHEEL CHAIR STAIRS)
Passenger who can walk inside the aircraft, but who can not walk and up and down the stairs and needs a wheelchair for moving for long distances inside the terminal
WCHC
(WHEEL CHAIR CABIN)
Passenger who constantly needs a wheelchair for th whole duration of his/her journey, including his/her stay at the departure and arrival airports
DEAF
Deaf or deaf and dumb passenger
BLIND
Visually impaired or blind passenger
DEAF / BLIND
Deaf and visually impaired / blind passenger
DPNA
Mentally impaired passenger