The Department of Natural Resources and Environmental Control approved the Delaware Visibility SIP. The SIP satisfies the following Regional Haze Rule requirements: monitoring strategies for evaluating visibility impacts; baselines and trends; long-term strategies; how Delaware meets its fair share of the "reasonable progress goals" towards reducing visibility impairment in Class I areas; and best available retrofit technology. http://regulations.delaware.gov/register/november2008/general/12%20DE%20Reg%20685%2011-01-08.htm#P10_265.