Mandates that all such people use public restrooms as per the gender on their birth certificates.

A transgender “bathroom bill” reminiscent of one in North Carolina that caused a national uproar now appears to be on a fast-track to becoming law in Texas though it may only apply to public schools.

A broader proposal mandating that virtually all transgender people in the country’s second-largest state use public restrooms according to the gender on their birth certificates sailed through the Texas Senate months ago. A similar measure had stalled in the House, but supporters late on Sunday night used an amendment to tack bathroom limits onto a separate and otherwise unrelated bill covering school emergency operation plans for things like natural disasters.

No intent to discriminate?

Republican Rep. Chris Paddie authored the hotly-debated language, saying it had “absolutely no intent” to discriminate. Under it, transgender students at public and charter schools would not be permitted to use the bathroom of their choice but could be directed to separate, single-occupancy restrooms.

“It’s absolutely about child safety,” said Mr. Paddie, from the East Texas town of Marshall. “This is about accommodating all kids.”

“This amendment is the bathroom bill and the bathroom bill is an attack on transgender people,” said Rep. Joe Moody, an El Paso Democrat. “Some people don’t want to admit that because they are ashamed, and this is shameful.”

Women hold symbolic protest

A small group of Democratic women legislators went into the men’s restroom just off the House floor before debate began in protest. With Republicans enjoying solid majorities in both of Texas’ legislative chambers, though, such opposition was purely symbolic.

While Barack Obama was still president, the U.S. Department of Education tried to implement requirements that school districts nationwide allow transgender students to choose campus bathrooms or locker rooms they wished to use. Texas led a lawsuit challenging that directive and a federal judge in Texas ordered it suspended. President Donald Trump then rescinded the order in February.

Republican Gov. Greg Abbott has said he wants to sign a bathroom bill into law. House Speaker Joe Straus, a Republican from San Antonio, has been even more vocal opposing one saying it could hurt a Texas economy that has been among the country’s strongest in recent years.

Outrage everywhere

Top firms, chambers of commerce and lobbyists also have decried the bathroom bill in all forms as bad for business. Many Hollywood actors and music stars have suggested state boycotts, and the NFL and NBA have expressed concerns about it passing even though Houston successfully hosted this year’s Super Bowl.

Since 2004, Texas has hosted more combined Super Bowls, NBA All-Star Games (three) and NCAA men’s Final Fours (five) than any other state. San Antonio is scheduled to host another Final Four in 2018, and Dallas is hosting the 2018 women’s NCAA Final Four.

Could it bleed the economy?

Supporters described limiting the scope to schools as “middle ground” and hinted that it could soften the kinds of costly boycotts that hit North Carolina after it approved its bathroom bill last year. The NCAA pulled sporting events and the state faced losing billions of dollars in related economic fallout, though some opposition has quieted since North Carolina lawmakers voted in March for a partial repeal.

Mr. Straus said in a statement that the House amendment “will allow us to avoid the severely negative impact” of the original Senate bill, which was closer to what North Carolina’s original looked like.

But opponents still vowed to fight Sunday’s Texas amendment with lawsuits.

If the Legislature succeeds “in forcing discrimination into Texas law, you can bet that Lambda Legal will be on the case before the next school bell rings,” Jennifer C. Pizer, senior counsel and director of law and policy at the national gay rights group Lambda Legal, said in a statement.