Generated using Vanderbilt code, version   7  3  4                              
Author: P. Giannozzi, using CAMPOS data   Generation date:    4    6 2003
rinner=0.9, rpcor=1.2
    1        The Pseudo was generated with a Scalar-Relativistic Calculation
  1.50000000000E+00    Local Potential cutoff radius
nl pn  l   occ               Rcut            Rcut US             E pseu
3S  3  0  2.00     10.00000000000      1.50000000000     -1.52084169822
3P  3  1  5.00     10.00000000000      1.50000000000     -0.63173986866

Generated using CAMPOS data, adapted to PBE - under testing
Should be very similar to the PW91 version. See:

http://www.physics.rutgers.edu/~dhv/uspp/uspp-cur/Work/017-Cl/017-Cl-gpw-n-campos/