§ 51.300 Purpose and applicability
§ 51.301 Definitions
§ 51.302 Reasonably attributable visibility impairment
§ 51.303 Exemptions from control
§ 51.304 Identification of integral vistas
§ 51.305 Monitoring for reasonably attributable visibility impairment
§ 51.307 New source review
§ 51.308 Regional haze program requirements
§ 51.309 Requirements related to the Grand Canyon Visibility Transport Commission

Terms Used In CFR > Title 40 > Chapter I > Subchapter C > Part 51 > Subpart P - Protection of Visibility

  • Baseline: Projection of the receipts, outlays, and other budget amounts that would ensue in the future without any change in existing policy. Baseline projections are used to gauge the extent to which proposed legislation, if enacted into law, would alter current spending and revenue levels.