[Hoot Gibson]

Why not just show your Birth Certificate, it would be the easiest and cheaper way.

Why did you ask your question if you understand how simple enforcement will be? 

However, there may be some jurisdictions where the lunatic left has managed to have an infinite number of genders available as options, or the sex omitted from birth certificates. In those cases, a chromosome test may be required.

Again, there is a copy of the ORIGINAL CERTIFICATE IN EACH STATE put it in the bill Original Birth Certificate=NO PLAY.
This stunt is nothing but a political ploy that's all it is.
You want people to take a test do you want all the participants take the test or just the one you want to take the test. Looks to me you are opening yourself up to a lot of lawsuits. At a cost of $100 to $2,000 a test that could run into a lot of money not counting the lawsuits if you don't include all of the participants. Would be simple to add 5 words to the bill. But it's just a political stunt.
And we come back to the problem MAGA had with taking the vaccine Big Government telling me what to do with my body.

What is the cost of genetic testing, and how long does it take to get the results?: MedlinePlus Genetics

You need to work on your reading comprehension. I suggest you start by rereading my post. Chromosome testing would be done only to settle disputes.

Do you support biological males competing against biological females or not? Simple question that requires a simple answer. Currently, boys are competing against girls and shattering women's records, so the current system is broken, in the opinion of most fair-minded Americans. Choose a side.

No, I don't support males playing in women sports. But if you going to write a bill and not put in it a way to enforce the bill it's not worth the paper it's printed on. Again, you said only to settle disputes are you going to test all of the participants or just single out the one you have a problem with. The way you see things the lawyers are drooling all they see is dollar signs. And the lawyers will jump all over this.
If Congress writes a bill, they need to be serious not play politics with it. This reminds me of all the bills the house wrote voting to overturn Obamacare something they can run on in the next election. 5 words ORIGINAL BIRTH CERTIFICATE NO PLAY would have a lot of bipartisan support, but they choose the political way shouldn't surprise anyone.

Another nonsense post. Democrats voted against the bill to avoid a tiny sliver of the LGBTQ community who support boys beating up on girls in competitive sports. They are just repeating the mistakes that Kamala Harris made during her career and campaign. Play stupid games and win stupid prizes.