(AP) _ New York authorities say most of the state's gun show operators have agreed to new rules to make sure weapon sales are properly tracked and done safely.

Attorney General Eric Schneiderman says Thursday that 23 operators representing more than 80 percent of the shows across the state will abide by the ``Model Gun Show Procedures'' developed after 2011 undercover operations showed buyers could obtain weapons without going through required background checks. He says another five operators are expected to adopt the rules.

A key provision is making sure all guns private sellers bring to the shows are tagged and then checked later to determine if they were sold and confirm a background check was done on the buyer.

The rules also limit the number of entrance doors to improve monitoring