You can now register for attendance of GRADES2013 via the SIGMOD registration form.
If you wish to attend the GRADES2013 workshop only and do not attend other workshops nor SIGMOD/PODS, then under Select registrant type choose the option Workshops only!
This possibility may not be immediately obvious from the web interface.
The price for attending GRADES is $150. If you also visit SIGMOD and are an ACM member, the price is $120. We note that these prices are determined by SIGMOD/PODS for all co-located workshops.
The deadline for early registration is May 25. If you register after this date, the prices will be higher. See the SIGMOD registration information.