The South Coast Air Quality Management District will hold a public hearing on proposed adoption of Rule 433, Natural Gas Quality. The objectives of the proposed rule are to monitor and determine the effects of new supplies of imported liquefied natural gas (LNG) on the quality of natural gas being supplied to end users, and to mitigate increases of air pollutant emissions caused by natural gas quality changes. The proposed rule would require affected operators to prepare and submit a gas quality monitoring plan, which includes monitoring locations, sampling methods, and calculations, and an LNG rollout plan, which includes past and future actions. The hearing will be held June 5, 2009. http://www.aqmd.gov/pub_edu/nph_433_Jun_5_09.html.