...
and Preview Your Programs, which contains instructions for submitting a test application through a test program:
Getting to this environment requires the “preview” setting:
The link for the environment will be formatted like https://~CAS~2025playground.prelaunch.liaisoncas.com/applicant-ux/#/login
So, for Vet: https://vmcas2025playground.prelaunch.liaisoncas.com/applicant-ux/#/login