Apparently in my county (and maybe others also), a divorced woman who has children under 18 must ask her ex-husband for permission to change her name back to her maiden name. The language of the law isn't gender specific, but really, when do men ever change their names?! The law clearly was intended to impact women by giving men control over their names.
And of course there are implications for trans communities too. If a bio-female with minor children divorces an ex-husband, and then comes out as trans, he will be required to get the ex's approval to change his name to affirm his gender.
EDIT: A lot of people are asking to see documentation. Here is the link to the name change request form: http://www.superiorcourt.maricopa.gov/sscDocs/packet…
On page 2 (Step 5) you'll see that the interested party must notify a spouse and/or the other parent of the minor child(ren), and if that person does not agree with the request for a name change, the applicant must invite the spouse/parent to the hearing to request the name change. I was a little misleading in my original post; I thought that the parent/spouse has outright veto power on the name change but it turns out the power is a little more complicated and involves a judge's decision.
Still, that person has some power over a decision which IS NOT THEIRS TO MAKE