What are SSR assistance codes?
Special service request codes are the industry's standard mechanism for arranging traveller assistance: WCHR, WCHS, and WCHC for graduated wheelchair assistance, alongside related codes for other needs. Requesting assistance means being assigned a category, and the category travels with the booking. The code system transmits standardised disability categories through the reservation ecosystem by design.
Who sees an assistance code?
The code moves through the reservation ecosystem to carriers and ground handlers, and, under passenger name record regimes, to state authorities, under legal frameworks the traveller cannot audit and courts have recognised as seriously intrusive. The traveller requested a wheelchair at a gate; the record of that request is now distributed across an international data pipeline with its own retention rules at every node.
Is an assistance code special category data?
Article 9 covers data revealing a protected category, not only the category stated outright, and a code whose meaning is "this passenger has a mobility disability" reveals health data on its face. The operational system was built for logistics, not privacy, and it predates the regulation; the tension is structural.
Can the operational need be avoided?
No, and honesty about that matters. Assistance has to be arranged, and the codes are how the industry arranges it; no employer architecture removes the operational disclosure to the carrier. What an architecture can do is narrower and still valuable: ensure the employer's own systems are not another node holding the category, and ensure the traveller knows precisely what each code disclosed and to whom before choosing to invoke it. Informed use of a leaky system beats uninformed use; a smaller distribution beats a larger one.
What should employers hold?
Proof that assistance needs were assessed and arrangements were available, and nothing else. The assistance request belongs to the traveller and the carrier; the attestation belongs to the audit trail. An HR or travel system that stores the code has converted a logistics message into a retained disability record, with everything that follows.
The question to ask
Pull one travelling employee's record from your booking and HR systems and count where assistance categories appear. Each appearance beyond the operational booking is retention without a job to do, and the deletion is cheaper than the explanation.