A: Yes. This task can be very easy if your access control is computer-based. All you need to do is to login in to the software that came along with your system and disable or enable (accordingly) the idy of the RF card or tag. However, this can be more complicated for standalone system, as you will need to have the actual RF card or tag in hand. Standalone systems are able to enable or disable a card or tag if these are presented in front of the reader.