Students were working Thursday on the mural that will say Massapequa Chiefs and feature a mascot in a feathered headdress.
Districts have a few years to make physical changes. By the end of next month, schools need to pass a resolution that outlines their commitment or risk state funding.
The Massapequa School District said it will fight the Board of Regents decision.
Many members of the community told News 12 that they stand behind the district in that decision.
"I don't see the people that are so against it. And I don't see that it's hurting anyone, and I think that it's erasing Native American heritage of Long Island that we are very proud of," says Tom Murphy, of Massapequa.
Some residents, however, said that if it is disrespectful to Native Americans then it should be taken down.
The district is seemingly in support of the mural and features a rendering of the finished piece on its
website.
News 12 could not reach the owner of the building where the mural is located, but the district said the mural is a long tradition that students design and paint themselves. The winning design was chosen from a number of finalists and voted on by high school students.