A Long Island school district has filed a lawsuit against the New York State Board of Regents, accusing the agency of violating its constitutional rights by banning the use of its Native American mascot.

The Massapequa school district is suing the board, which presides over New York’s Education Department, for its state-wide ban passed earlier this year on schools’ use of indigenous-related mascots and imagery, Newsday reported Friday.

The district’s “Chief” logo features a Native American in a feathered headdress.

The ban, passed in April, requires Massapequa —  and nearly 60 other state school districts, including 13 on Long Island — to eliminate their controversial mascots by the 2024-2025 school year or risk losing state aid.

“The Chief is more than a logo to our schools and community,” the board of education wrote in a letter on its website.

“It is our history and our heritage. When we speak of the Massapequa ‘Chief,’ we do so with pride and respect. As a Board, we are united in our efforts to stand up for our community and years of tradition,” the board said.

The phrase “Once a Chief, always a Chief” is often heard throughout Massapequa schools and the community, according to the Massapequa Post.

A copy of the federal complaint obtained by Newsday claims that the Board of Regents violated its First Amendment rights by banning school officials and officers from wearing “Chiefs” apparel while on school property and other events.

The Massapequa district also accused the board of violating standard procedure by fast-tracking the ban and exceeding its authority by establishing a “blanket prohibition” that didn’t specify which school needed to make changes to their mascots.

As an administrative body working within the executive branch, infringed on the governmental separation of powers.

The lawsuit additionally alleges that though the ban is designated as a “statute,” it functions as a law, meaning the board, working in tangent with the executive branch, violated the state government’s separation of powers.

The ban on indigenous mascots was supported by the Shinnecock Indian Nation and Oneida Indian Nation and does not apply to tribal schools.

Tribes, the Massapequa school district argued, “cannot be the sole decision-makers on whether a school district’s use of an Indigenous name, logo, or mascot is legal,” according to the suit. “They are not elected officials accountable to constituents …”

The Department of Education told Newsday it does not comment on pending litigation.

There are 13 schools on Long Island that were forced to change their school mascots, many of which have also signaled their intention to challenge the Board of Regents as well.

Amityville, Comsewogue, Wyandanch, Wantagh, who go by “Warriors” and Sachem, the “Flaming Arrows,” all voted to change their names, according to Newsday.

However, they each stipulated they have the right to push back against the state’s regulation.