Could Connecticut set air-pollution limits stricter than federal law without paying compliance costs?

Plain-English summary

In March 2000, Connecticut’s AG concluded that the federal Clean Air Act allowed the state to impose air-emission controls more stringent than federal limits. He relied on the act’s express reservation of state authority, which generally preserved stricter state emission standards and pollution-control requirements while barring weaker standards in specified settings.

The AG also found no federal requirement that Connecticut pay the cost of compliance when it chose stricter controls. The opinion noted that the act has exceptions for certain mobile-source rules, but said those did not affect the utility emissions relevant to this request. It resolved state authority and cost allocation under the federal act, rather than approving a particular emissions rule.

State officials at the time

The opinion recognized authority to adopt stricter controls without a federal duty for the state to fund regulated parties’ compliance.

Regulated facilities at the time

The AG did not identify any specific new state limit or calculate a facility’s cost. His conclusion addressed the power to set a stricter standard and the absence of a federal payment requirement.

Currency note

This opinion was issued in 2000. Subsequent statutory amendments, court decisions, or later AG opinions may have changed the analysis. Treat this page as historical context, not current legal advice. Verify current law before relying on any specific rule, deadline, or remedy mentioned here.

Common questions

Q: Could federal air standards act as a ceiling on Connecticut utility rules?
A: The AG said no for the question presented. The Clean Air Act preserved state authority to impose stricter controls, subject to its stated exceptions.

Q: Did Connecticut have to pay a utility’s cost of following stricter state air controls?
A: The opinion said the federal act imposed no such requirement on the state.

Q: Did the AG approve a specific emissions limit?
A: No. He answered whether the state could set stricter limits and who had to bear compliance costs under the federal act.

Background and statutory framework

A state senator asked about Connecticut’s authority to exceed federal air standards and responsibility for the resulting cost. The AG relied on the Clean Air Act’s state-authority clause and found no provision assigning those compliance costs to the state.

Citations and references

Statute: 42 U.S.C. § 7416.

Source

• Landing page: https://portal.ct.gov/AG/Opinions
• Opinion page: https://portal.ct.gov/ag/opinions/2000-formal-opinions/hon-george-jepsen-majority-leader-state-senate-2000009-formal-opinion-attorney-general-of-connecticu

Original opinion text

Hon. George Jepsen, Majority Leader, State Senate, 2000-009 Formal Opinion, Attorney General of Connecticut

Attorney General's Opinion

Attorney General, Richard Blumenthal

March 7, 2000

Hon. George Jepsen

Majority Leader, State Senate

State Capitol

Hartford, CT 06106-1591

Dear Senator Jepsen:

You have inquired whether the State has authority to establish standards for air emissions which are stricter than those established under the federal Clean Air Act, 42 U.S.C. § 7401 et. seq. You have also inquired whether the cost of establishing more stringent standards must be borne by the State. For the reasons set forth below, I conclude that the State does have the authority to establish more stringent standards than those imposed by the Clean Air Act and that the State is not required to bear the cost.

"The Clean Air Act, 42 U.S.C. §§ 7401-7642 (Supp. III 1979), establishes a complex federal-state relationship to control air pollution." COUNCIL OF COMMUTER ORGS. V. GORSUCH 683 F.2d 648, 650 (2d Cir. 1982). In keeping with the joint responsibilities created by the Act, the Congress specifically left regulatory options open to the States. 42 U.S.C. § 7416 provides:

Except as otherwise provided in sections 119(c), (e), and (f) (as in effect before the date of the enactment of the Clean Air Act Amendments of 1977 [enacted Aug. 7, 1977]), 209, 211(c)(4), and 233 [42 USCS §§ 7543, 7545(c)(4), and 7573]1 (preempting certain State regulation of moving sources) nothing in this Act shall preclude or deny the right of any State or political subdivision thereof to adopt or enforce (1) any standard or limitation respecting emissions of air pollutants or (2) any requirement respecting control or abatement of air pollution; except that if an emission standard or limitation is in effect under an applicable implementation plan or under section 111 or 112 [42 USCS § 7411 or 7412], such State or political subdivision may not adopt or enforce any emission standard or limitation which is less stringent than the standard or limitation under such plan or section.

The Clean Air Act, thus, specifically permits states to enact provisions more stringent than the federal provisions set forth in the Act.

Next you inquire whether the State is required to assume the costs for the more stringent controls it may require. It is not. A review of the provisions of the Clean Air Act does not reveal any such requirement on those States which choose to impose more stringent pollution control measures than those set forth in the Act. When Congress chooses to impose conditions on the States as a prerequisite for participation in federal programs it must do so unambiguously.

We held that Congress will not be presumed to have created substantive legal obligations [on the states] ... by legislation so ambiguous that a State is unaware of the conditions or is unable to ascertain what is expected of it .... .

GUARDIANS ASSN. v CIVIL SERV. COMM'N N.Y.C. 463 U.S. 582, 637 (1982).

It is therefore the opinion of this office that the Clean Air Act specifically permits states to require more stringent pollution controls than those imposed by federal law and that there is no requirement under the Act that the States pay the cost of compliance with such requirements.

Very truly yours,

RICHARD BLUMENTHAL

ATTORNEY GENERAL

Judith A. Merrill

Assistant Attorney General

RB/JAM

1 These exceptions do not apply to utility emissions.