WASHINGTON—President Trump’s commission on school safety has recommended revoking a federal guideline directing schools not to punish minority students at higher rates, a stricture that some Republicans and other activists feared has led schools to avoid punishing potentially violent students.

The commission, formed after the school shooting Feb. 14 that killed 17 people in Parkland, Fla., largely sidesteps making any recommendations to tighten access to firearms, falling far short of what Democrats and most education-policy officials say is necessary to reduce the frequency of gun-related violence.

Mr. Trump, in a White House event unveiling the report Tuesday, said: “The grief inspires us all.” He said he was “profoundly grateful to all of the families who are working with us to prevent others from suffering the same horrible tragedy.”

“No student or teacher should ever have to worry about their safety at school,” Education Secretary Betsy DeVos said. She said Mr. Trump, when he asked her to take on the commission, had instructed her to avoid “only looking at one aspect of a much larger problem.”

The 177-page report, which was released publicly Tuesday afternoon, does recommend that individual states or districts consider arming school personnel, either teachers or law-enforcement officials present in school buildings, particularly in rural areas where supplemental help would take longer to arrive.