The House has approved so-called "Caylee's Law" bill inspired by the Casey Anthony case in Florida.
Republican Rep. Michelle Ugenti of Scottsdale sponsored the bill, which would make it a felony punishable by a presumptive sentence of 1 1/2 years if a parent to fails to report that a child under age 6 has been missing for 24 hours.
More than a dozen other states have considered similar legislation after Casey Anthony didn't report 2-year-old Caylee Anthony missing for about a month. The mother was acquitted of murder in the daughter's death.
Ugenti says police need to begin searching quickly and that parents must be held responsible for their children.
The bill now advances to the Senate.
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