This year, 16 states have considered introducing "bathroom bills", according to the National Conference of State Legislatures, and 14 have mulled legislation to limit the rights of transgender students.
The bill will mean that transgender students at public schools will have to use bathrooms and locker-rooms in line with their "biological sex" or use a "single-occupancy facility" that the school must provide as an alternative.
The Texas House on Monday also cleared a "bathroom bill" reminiscent of one that caused a national uproar past year in North Carolina, although less far-reaching. Paddie expects the bill to quickly pass through the Senate with the state's legislative session ending on May 29.
The state attorney general would be responsible for enforcing the bathroom law by filing lawsuits seeking a court order or injunctions against schools or school districts that do not comply. Sunday's votes comes after lawmakers in both houses heard testimony from hundreds of trans kids and their families about how risky the law could be.
"He would be very embarrassed and ashamed to be outed", said Smith, who plans to pull her child out of school if the measure is adopted.
A Patrick-backed measure, which Straus torpedoed in the House, would have gone much farther - requiring transgender people to use the bathrooms that correspond with the sex listed on their birth certificates in schools, universities and government buildings.More news: Ringling Bros. shuts down the big top after 146 years
The Senate's version of the bill would have extended the program until 2019 - which upset critics of high-stakes testing, who wanted a permanent extension.
Marty Rouse, national field director for the Human Rights Campaign, said in a statement the measure "is a risky, discriminatory bill" that represents anti-LGBT animus "coloring so much of the Texas Legislature this session".
On Sunday Rep. Chris Paddie, R-Marshall, added the bathroom wording to a school safety and security bill.
The Texas bill is less than 24 hours old, and it still needs to go through the House of Representatives before Governor Abbott can sign it, but to date, the NCAA has refrained from publicly commenting on SB 6 as well.More news: Apple's iPhone 8 On Track For September Launch
Rebecca Robertson, legal and policy director for the ACLU of Texas, ridiculed the idea that the bathroom amendment was somehow a compromise, saying: "T$3 here can be no compromise on discrimination".
"I'm willing to stay as long and until the place we're staying in ... freezes over, until we get that bill" passed, Patrick said during the bill-signing ceremony, with Abbott seated behind him.
"Gov. Abbott's hope is that the House and the Senate will agree on a measure that, at a minimum, protects the privacy of students in locker rooms and restrooms, and he will continue to work with members of both chambers to achieve that goal", said John Wittman, a spokesman for the governor.
Also Monday, officials with the Keep Texas Open for Business Coalition - which includes Apple, Intel, IBM and about 70 other corporations - said the House transgender bathroom ban was not business-friendly.
It's a measure that would override existing trans-inclusive policies at some school districts that allow transgender children to use the bathroom of their choice.More news: Google Unveils New Standalone Virtual Reality Headsets At I/O 2017