The Trump administration is probing a progressive all-women's college in Massachusetts for allegedly admitting transgender students.

The US Department of Education announced Monday it was investigating Smith College, a liberal arts school with about 2,500 students in the modest town of Northampton, about two hours west of Boston.

The department's Office for Civil Rights will look into whether Smith violated Title IX, the federal law banning sex-based discrimination in schools.

Smith could be in violation because Title IX's exemption for single-sex colleges applies 'on the basis of biological sex difference, not subjective gender identity,' the federal agency said.

'An all-women's college loses all meaning if it is admitting biological males,' Kimberly Richey, the Assistant Secretary for Civil Rights, said. 'Allowing biological males into spaces designed for women raises serious concerns about privacy, fairness, and compliance under federal law.'

Richey added that the Trump administration would 'continue to uphold the law and fight to restore common sense.'

Smith's website currently notes that 'cis, trans, and nonbinary women are eligible to apply' for admission, and that hormone therapy is provided on campus.

The college began admitting transgender women in 2015, two years after facing backlash for refusing to admit a high school senior whose gender identity did not match what was listed on her financial aid form.

The Department of Education claimed Smith was 'admitting biological men and granting them access to women-only spaces, including dormitories, bathrooms, locker rooms, and athletic teams.'

'When an institution holds itself out as being an all-women's college, it is not just promising to deliver female-only dorms and bathrooms, and single-sex athletics; it is also committing to maintain a student body that makes possible a particular form of sorority and camaraderie,' the agency said. 

Smith began clearly including transgender students in its admission policies in 2015.

That decision came two years after Smith denied admission to Calliope Wong, who identified as a transgender woman, in 2013. 

Smith's decision sparked a series of on-campus protests across women's colleges.

Wong ultimately enrolled at and graduated early from the University of Connecticut before taking her life in 2021, according to UConn Magazine.

It is unclear how many transgender students are currently enrolled at Smith.

On its website, the liberal arts school notes that it is 'actively working to expand support for transgender students.'

Smith also provides 'trans-affirming primary care,' including hormone therapy, on campus at the Schacht Center for Health and Wellness.

Additionally, every single-occupancy restroom on campus is designated as all-gender, according to school.

There is also an all-gender locker room in the athletic facilities that includes private showering and changing areas.

The investigation into Smith was opened in response to a civil rights complaint filed by Defending Education, a conservative nonprofit whose stated mission is 'working to restore schools at all levels from activists imposing harmful agendas.'

The original complaint claimed the college 'threatens to investigate and/or punish students who disagree with the college's unlawful policies on gender identity and sex.' 

Defending Education's president, Nicole Neily, said she was 'gratified' that the Trump administration was looking into Smith.

'I believe very strongly in the importance of single-sex spaces, be it a boys camp or an all-women's college,' Neily told Politico.

She added that 'how Smith College has been addressing the issue of gender, to me, is very troubling.'

'It sends a very mixed message that natal males who identify as female are allowed to attend, but biological girls who identify as boys are not,' Neily said.

A spokesperson for Smith College confirmed the Department of Education's probe but said the school would not comment on pending government investigations.

'The College is fully committed to its institutional values, including compliance with civil rights laws,' Smith's spokesperson told the outlet.

About 4.7 percent of undergraduate college students identify as transgender, according to the Society for Evidence-Based Gender Medicine.

Research indicated that figure dipped to roughly 2.7 percent within graduate ranks, likely because the students are older.

The Trump administration has previously looked into other colleges around the country for transgender-related matters.

In January, the Department of Education announced that San Jose State University violated Title IX by 'allowing males to compete in women's sports and access female-only facilities deny women equal educational opportunities and benefits.'

Two months later, the agency said the university had not signed a proposed resolution agreement and had 'taken no other action to ensure the safety of its female students.'

Last March, $175million in federal funding to the University of Pennsylvania was frozen 'over its policies forcing women to compete with men in sports,' according to the White House's Rapid Response X account.

That decision came one month after Trump signed an executive order called, 'Keeping Men Out of Women's Sports.'

The Daily Mail has reached out to the Department of Education and Smith College for further comment.