(Portland, OR) -- The Large Tree Amendment to the City of Portland's Tree Code is up for review. It's currently set to expire at the end of the year. It requires developers to pay higher mitigation fees for removing trees 20 inches in diameter or larger. Portland Parks says it's preserved trees and had little impact on housing production. The Amendment has allowed 42-thousand trees to be planted in priority neighborhoods that lacked trees. A hearing was held last night.