Chief law enforcement officials in 16 states wrote Monday to express concerns over a federal proposal that would regulate the privacy practices of broadband providers while exempting big tech companies, saying it would threaten consumer privacy and complicate “an already complex regulatory environment.”

“Consumers value their privacy and the security of their personal information, period. They do not differentiate between who has access to their information in the online environment,” the group of attorneys general wrote in a letter to the Federal Communications Commission.