Planning Factors We have tried to assemble information about each option for your consideration. We have tried to provide pointers to more information or relevant training or sources of supply. Again, we cannot advise you. Cost, feasibility, and adequacy are all factors that can only be addressed in specific cases. But many things can be done that require mostly care and time. T-CEP has assembled the information on which this booklet is based in a library which can be made available. You have only to contact us.