If approved by the city assembly, the law would offer engaged couples a legal contract outlining how much a man or woman can recoup if he or she gets jilted at the altar.
The contract would stipulate reimbursements at any point the engagement is called off.
"What we want is to protect the person who is being hurt, not only emotionally but also economically," Jose Zepeda, a divorce lawyer-turned-politician, told The Associated Press. "Whoever rents a wedding hall, pays for the church, for the cake, has the right to be reimbursed."
Such contracts could "eliminate the culture of fighting," said Zepeda, who proposed the bill.
Laura Gomez, a 33-year-old, bride-to-be perusing a bridal shop in downtown Mexico City, said the contracts were "a perfect idea."
They would "give more security and trust to both people involved," Gomez said.
But Pamela Montiel, a 19-year-old getting married in April, said she would never sign such an agreement. "Things like that are for immature people," she said.