All true, but you cannot initiate this on the basis of age or disability status -- it must be universal policy that engineers delegate in order to manage risk.

All true, but you cannot initiate this on the basis of age or disability status -- it must be universal policy that engineers delegate in order to manage risk. 30 year-old must be treated same as 50 or 60 year-old. If you should ever have to engage in anything that could be viewed as a demotion on the basis of medical disability or age you should it get your HR people involved for due diligence.