The Rhode Island Department of Environmental Management, Office of Air Resources, gives notice of a public hearing regarding the adoption of the Providence Carbon Monoxide Limited Maintenance Plan and proposed amendments to Air Pollution Control Regulations Number 9, 11, 22, and 36. The hearing will be held August 8, 2008. Comments are due August 8, 2008. http://www.dem.ri.gov/programs/benviron/air/9112236.htm.