This chart is a reproduction of this chart from EEI that has been used to suggest that EPA's regulatory timeline is unworkable1. However, as illustrated here, the original chart consists mostly of procedural events and activities that will not impose a direct compliance obligation on power plants.
WRI has identified four categories of EPA activities on the EEI timeline that are potentially misleading, marked with color-coded "X"s as follows:
(Blue X's) Rules that have been remanded or vacated by court decisions that do not impose compliance obligations.
(Green X's) Rules that are already in effect representing compliance obligations that already exist; there are no new requirements imposed by these rules.
(Purple X's) Public input through the rulemaking process (leads to more robust and fair rules for the electric power sector, and should not be conflated with new compliance obligations).
(Red X's) National Ambient Air Quality Standard (NAAQS) rules for various pollutants that set standards for states to achieve. They do not establish new requirements for electric generation units.2
Click here to see a revised chart of only new compliance obligations.
If states believe that the only way to come into attainment of NAAQS standards is by obtaining additional reductions from electric generators, then the most likely way for states to effect those changes is through modification of the existing regulations that already control emissions of those same pollutants. EPA could undertake similar action through a future update to the Transport rule. ↩︎