PORTLAND, Ore. – Portland Public Schools officials doesn’t want students to listen to violent rap music while they’re bused to school, and some folks think that makes them racists.

Outraged parents in August circulated an internal PPS memo sent to school bus drivers this spring that specifically prohibits them from tuning into local rap music stations while driving kids to school, forcing officials to rethink the decision, The Oregonian reports.

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The letter, sent March 9 by senior director of transportation Teri Brady, states:

Below is a list of the approved radio stations that may be listed to when students are present on the bus. This list excludes any radio stations that may be in any way offensive to any student riding a PPS bus, either a District or any contract vehicle. The states that are deemed inappropriate include any religious, rap music or talk show programs.

The list below is to be used to select radio stations that the District feels are appropriate for listening while transporting students.

The document goes on to list three pop stations, one country station, and one jazz station.

Parent Colleen Ryan-Onken told the news site the memo “kind of fell into my lap,” and it made her furious.

“I think it’s overly racist and leaves out two of our major communities in our music choices,” said Ryan-Onken, mother of a senior at Roosevelt High School.

Ryan-Onken said she was offended that rap music was deemed inappropriate and Latin music wasn’t addressed at all, Fox News reports.

“When you outlaw a kind of music that is very indicative of the modern culture of one group of people you’re basically saying that they’re not welcome,” she told The Oregonian. “Those of us I the district, living in diverse communities in Portland, understand the racial equity stuff going on is entirely for the cameras. There is no real meat behind it.”

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Other parents also sounded off.

Kim Sordyl, a frequent critic of the district, wrote to school board vice chairwoman Amy Kohnstamm to point out that the allegedly racist memo was sent to staff despite extensive training and money spent on racial equality in the district, according to The Oregonian.

“PPS has spent a lot of taxpayer dollars on a PR show of equity,” she wrote in the email about the “racist” memo. “It has a ‘Racial Equity Policy,’ ‘equity lens’ table tents & posters, $9 million/year is spent on no-bid equity contractors (who donated to your campaign).”

Kohnstamm did not respond to the message.

Ryan-Onken contends that if school officials were sincere about wanting to ban music that’s offensive to students, they’d target more genres than just rap music.

“Country music is offensive,” she said. “It’s about date rape, liquor and drugs – all kinds of things!

“It’s just as offensive as rap music can be.”

The Oregonian also highlighted the city’s history of allegedly attempting to suppress minority music.

According to the site:

Portland, the whitest major city in America, has long had had a prickly relationship with hip-hop.

Portland’s tolerance of hip hop has even come under national scrutiny. In 2013, Vice declared “Portland Has A Hip-Hop Problem” in an article that concluded gentrification pushed out minorities and, consequently, their music.

In 2006, Portland Police questioned if rap concerts were causing shootings, according to The Portland Mercury. In 2014, after police presence cut short a Southeast Portland rap show, Portland’s Independent Police Review division examined the relationship between the police bureau and hip-hop artists.

Portland Police weren’t alone in this fear. In 2006, The Wall Street Journal reported rap concerts in Las Vegas casinos were being canceled last minute due to pressure from police and the state’s gaming control board, which regulates gambling.

The then-sheriff said he felt getting casinos to stop booking “gangster rap acts” was a “legitimate crime-prevention strategy.”