Tighter travel rules surrounding passports are creating some big benefits for single parents who've been waiting for child support payments.
Federal officials say more than 22 million dollars has been collected this year from child support scofflaws.
The State Department denies passports to non-custodial parents who owe child support until they make good on their debts.
Now that millions of additional travelers need passports to fly back from Mexico, Canada, the Caribbean and South America, officials say collections under the program are on pace to about double this year.
A child support enforcement official in Washington state says "it's been amazing to see" how people who owe child support can come up with the money when they need a passport.
In one case, a U.S. businessman now living in China paid more than $300,000 in back child support in order to get his passport.