North Carolina’s attorney general says the state has more than 15,000 untested sexual assault kits, a number that one national advocacy group called “significant.”

Attorney General Josh Stein released the numbers at a news conference Wednesday. A new state law required all law enforcement agencies to report their numbers of untested rape kits, and 92 percent of the 563 agencies responded.

Stein is proposing a bar code tracking system for future kits, and he’s seeking legislative help in determining which kits to test first. The cost of testing a kit is about $700, meaning a total cost of about $10 million.

Ilse Knecht of the Joyful Heart Foundation says it’s hard to compare state-by-state numbers but says North Carolina’s is significant. She called North Carolina’s audit “a bold first step.”