CAMBUS as of July 1, 2021 has discontinued its public service announcement (PSA) poster program and advertising program. The process to administer, install, and remove posters requires considerable resources. Between 2020 and 2021 there was a decline in poster submissions, and those employee resources were reallocated to critical service tasks. At this time, CAMBUS cannot continue the poster program.

The decision to discontinue the poster program may be revisited at a later time. The display space in buses will be used for Parking and Transportation service information only.