Outdoor bronze structures are vulnerable to a range of degradative agents (air pollution, weathering, bird droppings, vandalism etc.). Conservators, however, disagree on conservation treatments. A study was made of conservation treatments used by 30 conservation departments and institutions (based on an appendix from sculptural monuments in an outdoor environment ). The most commonly reported treatment was application of a protective coating (wax or incralac); second was cleaning frequently followed by corrosion product removal, benzotriazole treatment or patination. Results are also presented from a telephone survey on maintenance schedules: all agreed that an effective strategy involves a program of annual inspection, regular washing, and the application of protective surface coatings. Tables, photographs, notes and references. -- ICCROM