During fare validation, if you see a Green Check Trip Open response on Key Cards, which button should you select on your HSD?

When fare validation displays a Green Check Trip Open response for Key Cards, selecting the OK button on your HSD (Handheld Device) is the appropriate action. This response indicates that the fare has been accepted, and the trip validity is confirmed. By pressing the OK button, you are acknowledging the successful validation and proceeding with the transaction or entry process.

This action is crucial in ensuring that the correct information is registered in the system, thus allowing for smooth operations and accurate fare tracking. It is important to follow this sequence to maintain the integrity of the fare collection process and to ensure that the system recognizes that the trip is active and valid.

Other options like Cancel, Submit, or Exit would not be appropriate in this context. Cancel would terminate the transaction, Submit typically pertains to finalizing information that may not be necessary here, and Exit would close the program or move away from the validation screen, which is not needed when you receive a successful validation response.