(Portland, OR) -- The City of Portland has changed the rules for off-leash dogs in parks where leashes are required. Portland has more than 30 dog off-leash areas. Since 2013, Park Rangers have been required to issue warnings to dog owners who don't follow the leash law, but it's difficult to track who's received a warning and who hasn't. The city has changed the law, so citations can be issued for the first offense. Park Rangers can also give warnings at their discretion.