Trump exempts listed chemical facilities from some HON Rule deadlines for two years, citing national security
On July 13, 2026, the White House issued a proclamation granting a two-year exemption from certain HON Rule compliance deadlines to stationary sources listed in Annex I. The order uses Clean Air Act section 112(i)(4) and says the covered facilities will stay subject, during the exemption period, to the standards that applied before the HON Rule took effect.
The proclamation presents the chemical manufacturing sector as important to supply chains tied to energy, defense, agriculture, health care, infrastructure, and advanced manufacturing. The administration says the HON Rule’s compliance timeline and technology requirements could force costly upgrades or disruptions before some facilities have a practical path to meet the new standards.
The legal move is narrow, not a full rollback. It applies to a defined set of stationary sources and only to the HON provisions covered by the proclamation. But the policy signal is broad enough: the White House is treating some industrial pollution rules as something that can be delayed when officials say national security and industrial output are at stake.
The result is a two-year buffer for listed facilities, with the older standard still in place while the exemption runs. That gives the administration relief for a targeted group of plants without rewriting the rule itself. It also shows how quickly environmental compliance can become a competition between air rules on one side and industrial-policy arguments on the other.
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