In the wake of an Oregon Supreme Court ruling last week overturning long standing precedents declaring campaign contribution limits in Oregon elections unconstitutional, Portland will enforce a voter approved $500 per donor limit starting Monday.

The court ruled that contribution limits do not violate free speech.

However, they asked lower courts to decide if $500 per donor limits, approved first by Multnomah County voters and then by Portland voters, are too low.

Portland city election officials say they’ll begin enforcing the contribution limits after the Oregon Court of Appeals on Tuesday overturned a Multnomah County Circuit judge’s decision declaring campaign contribution limits in city elections unconstitutional.

However, election officials will not retroactively enforce the limits. Candidates who violate the new donation limits will face fines of up to $3,000 per violation.