515) is a federal law that requires, among other things, a visual "unique identifier" to be placed on the passports of registrants convicted of sex offenses involving a minor.

[7] According to Rep. Bill Flores (R-TX), the bill would enable the United States "to notify destination countries that a sex offender who has previously abused a child is traveling to that country and encourage reciprocal notification to protect American children from abuse by foreign sex workers".

[15] Chrysanthi Leon, associate professor of sociology and criminal justice and women and gender studies at the University of Delaware, argues that registrants are generally not the ones who will commit new sex crimes and that the U.S.

[16] After HR 515 passed the Congress, in February 2016, editorial boards of Los Angeles Times[17] and Monterey Herald,[18] and Lenore Skenazy of Free-range kids urged President Obama to veto the bill.

They say the law will include those convicted of misdemeanors such as "sexting" or public urination to be identified as a sex offender on their passports.

[21] The lawsuit says that "a passport symbol that identifies an individual as a registered sex offender could place at significant risk that person as well as others traveling with them, including family members and business colleagues".

The lawsuit[22] was dismissed by a San Francisco federal District Judge on the grounds that it was filed prematurely and did not cite any valid constitutional claims.