This is a little off the track of the current discussion -- or perhaps just a more fundamental question -- but I find myself a bit startled at some of the uses of the term "biological mother."
Before IVF and IVF-surrogacy really existed, this had a simple meaning: the mother that bore you, as opposed to the adoptive mother that raised you. Being genetically related was identical to "came out of the womb of."
(But maybe I am being naive about this.)
Nevertheless, it's clear from CB and others that the regulations now take "biological mother" to mean "developed from her genetic material." But all three trimesters of pregnancy, and giving birth, is in reality much more than a 'sentimental' attachment (which is what's focused on when surrogates renege), isn't it? It's
also "biological" -- there's a physical connection (the umbilical and placenta), sharing of fluids, etc. -- there are even circumstances where the carrier mother's and fetus's lives are interdependent, and diseases and accidents where one would not be savable without the other. So in "lay" (not legal) terms, that can't be anything but "biological."
So it just seems odd to me to have the term "biological" being used now explicitly to
exclude the very circumstance that it used to define.
On reflection, "biological father" has always meant the same thing -- switching to adding sperm by pipette instead of by intercourse, or to a petri dish instead of 'naturally,' didn't change anything about the father's role, and no second man has any ancillary role at all.
I am tempted to wonder if the simplistic use and interpretation of "biological" as a descriptor has been the victim of male hegemony (as has so much else) and the lag in adapting statute to these more complicated cases is not so much a phenomenon of the advancing times and in-vitro science, but as much or more a phenomenon of sexist mores, and not recognizing that egg, womb, woman, and fetus are deeply connected in complex ways.
Offtopic :
Certainly a RW fundamentalist xtian would balk at updating these regs in the way I'm implying; they would be perfectly happy with the "identity" (including national identity) of a fetus being determined by the source of the ovum. After all, to them, once conception occurs, that nodule of gametes belongs to the government, not the "mother." How many of those aforementioned graduates of Liberty U worked on policy drafts for State/Consular/INS on these matters? They certainly couldn't promote regs that legally implied that a woman has a right of choice, or that a fetus isn't a full person until birth.