The Louisville Metro Council has scheduled two public hearings on proposed changes to the landmarks ordinance.Democratic Councilman David Yates is proposing significant changes to the law, which allows citizens to petition the Landmarks Commission for protected status for a building or monument. Preservationists argue that Yates’ amendments favor developers and undermine the system of protecting the city’s history.The first public hearing will be held March 13 in the Metro Council chambers at City Hall. The second hearing is April 3 at the UAW Local 862 hall on Fern Valley Road. Anyone who is unable to speak at the hearings will be allowed to submit written testimony for inclusion in the record. Democratic council members Tina Ward-Pugh and Tom Owen have come out against the legislation.