Yes and no.Yes, in that it may be a violation of your parole to drive a vehicle that does not have an interlock, so you may be in a position where either it is installed or you are violation.No in that neither you nor the parole officer has the right to put an interlock on someone else's car or truck--that, your employer's vehicle. The employer cannot be forced to allow you to do this, though the employer may voluntarily choose to do it. If the employer refuses to, then you have to do one of the following: 1) drive your own vehicle, on which you can put an interlock, for work; 2) find a different job that doesn't involve driving an employer's vehicle; or 3) see if your employer will change your job so that you don't need  to drive one of the employer's vehicles.