Google’s John Mueller in Google+ webmaster hangout addressed a question where he talked about the whitelists. He said that for some algorithms Google does have a whitelist but for others they did not.He specifically mentioned that for the Penguin and Panda algorithms, a whitelist or exception list does not exist.
John said, not exactly, but closely that, for the most part we do not have a whitelist where we can say this web site is okay and we can take it out of the algorithm. For some individual cases, we do do that. For a lot of the general search algorithms, we do not have that ability. But for others, we do have that ability, such as with the SafeSearch algorithm and false positives on adult content. They can add those sites to the whitelist manually for the time being until they fix the algorithm. But Google does not have that for Panda or Penguin algorithms. So it depends on the algorithm.No Whitelists For Panda and Penguin Algorithms!,