SPU uses Adobe Sign for registration petitions.
https://na3.documents.adobe.com/public/esignWidget?wid=CBFCIBAA3AAABLblqZhCd31DXC0sllBHuA_vh1LZewu_3zg4ioku3pRNGx_AvtqmgyKxuMHYRtfteUcZaqPM*