Proposed EPA Rule Leads to Quadrupling Group 3 Ozone Season CSAPR NOx Prices | Emissions Watch Blog
The EPA issued a proposed rule in February 2022 that, if finalized, will implement significant programmatic changes, and establish lower emissions limits to the existing Group 3 Ozone Season Cross-State Air Pollution Rule (CSAPR) beginning in the 2023 ozone season. Following the issuance of this proposed rule, Group 3 CSAPR NOx allowance prices have quadrupled from approximately $6,500/ton in February to $28,500/ton (June 6).
The table below highlights the most significant proposed changes to the rule, many of which are driving this recent increase in allowance prices.
Table 1: Current Group 3 Ozone Season CSAPR Rule vs. Proposed Rule
Click the image to download a PDF version.
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