WFPC2 Re-Commissioning After Servicing Mission 3B

We describe here the results from an extensive series of tests and ob- servations that we carried out with WFPC2 as part of the Observatory Verification program during March to April 2002, after SM3B. These tests included UV moni- toring of possible contamination, performance checks of the biases, darks and other internal calibrations, as well as PSF and flatfield verification. The results from these tests show that there are no significant changes in the characteristics of the camera with respect to its pre-SM3Bperformance.