This note describes a concept for a CW Proton Linac on the Fermilab site. Except for the RFQ, the linac is based on superconducting technology. The linac has three segments that accelerate to 1 GeV, 3 GeV, and 8 GeV, respectively. It is located near the existing Fermilab Proton Source so that each section of the linac can be used as soon as it is commissioned. The whole design is based on the designs suggested for the Proton Driver and Project X. The suggested site and linac segmentation allow for the construction to start as soon as approval is granted. Additional benefits come from the fact that the present linac (the oldest machine in the Fermilab complex) is replaced, and the functionality of the existing Proton Source is preserved for the future.