The U.S. Environmental Protection Agency has proposed repealing another set of greenhouse gas rules covering the U.S. power sector, according to a publication from the Small Business Administration's Office of Advocacy.

The Office of Advocacy item, headlined "EPA Proposes to Repeal Additional Greenhouse Gas Rules for Power Plants," adds the power-plant GHG program to a list of recent federal climate rollbacks. The Office of Advocacy surfaces federal rules that carry significant small-business impact and typically comments on agency rulemakings under the Regulatory Flexibility Act.

The post does not specify which set of additional greenhouse gas regulations EPA is moving against, or whether the proposal targets new-source performance standards, existing-source guidelines, or both. It also does not list the docket number, proposal date or signature authority behind the action.

Which power-plant rules sit in scope?

EPA's power-sector greenhouse gas framework has historically rested on the 2009 endangerment finding under Section 202 of the Clean Air Act, the legal basis the agency has used to set subsequent standards for fossil-fired generation. Standards issued under Clean Air Act sections 111(b) and 111(d) govern new and existing stationary sources respectively. Any repeal would have to identify the specific subpart or rule being withdrawn.

Without the underlying Federal Register entry, the regulated community cannot yet confirm whether the proposal targets emissions guidelines for existing coal- and gas-fired units, new-source review thresholds, or a combination. Industry counsel typically reviews the docket to determine compliance obligations still in force.

Who filed the notice?

The Small Business Administration's Office of Advocacy is the conduit. The office publishes regulatory alerts to flag proposed rules with potential small-business impact, drawing on agency review obligations under the Regulatory Flexibility Act and Executive Order 13272. Its alerts do not constitute EPA filings themselves.

Circular Wire has requested the underlying docket materials from EPA and the Office of Advocacy to clarify the specific rules under reconsideration. The action follows a series of recent EPA rulemakings narrowing the scope of greenhouse gas regulation for stationary sources.

What happens next procedurally?

A repeal proposal of this kind normally moves through a public-comment period before EPA can finalize withdrawal. Stakeholders typically weigh in with technical, legal and economic comments, and any final rule must address significant comments raised during the comment window.

The next milestone for the industry will be publication of the formal proposal in the Federal Register, which will trigger the comment clock and disclose the specific regulatory text under reconsideration. Until that filing appears, generators, state air agencies and project developers cannot finalize compliance planning for any rule that may be withdrawn.

Operators with pending new-source reviews and states implementing existing-source guidelines remain in a holding pattern pending the Federal Register release. The Office of Advocacy post does not name an effective date or comment deadline.