Data brokers, trade groups and online platforms are urging California’s privacy agency not to pursue new rulemaking related to consumers’ privacy rights, saying they already face enough challenges complying with looming requirements.

Businesses largely called for non-binding guidance over formal rules in response to questions from the agency about the need for new regulations to make rights under California’s privacy law easier to exercise and facilitate. Comments were published Wednesday.

The California Privacy Protection Agency, the only state privacy agency, also asked for feedback on consumers’ and businesses’ experience with opt-out preference signals, which let users broadcast “do not sell” …