---
kind: "section"
citation: "40 C.F.R. § 300.500"
title: "40"
number: "300.500"
heading: "General."
url: "https://uscodex.org/cfr/40/300.500"
---

# §300.500. General.

- (a) EPA shall ensure meaningful and substantial state involvement in hazardous substance response as specified in this subpart. EPA shall provide an opportunity for state participation in removal, pre-remedial, remedial, and enforcement response activities. EPA shall encourage states to enter into an EPA/state Superfund Memorandum of Agreement (SMOA) under [§ 300.505](/cfr/40/300.505.md) to increase state involvement and strengthen the EPA/state partnership.
- (b) EPA shall encourage states to participate in Fund-financed response in two ways. Pursuant to [§ 300.515(a)](/cfr/40/300.515.md?p=a), states may either assume the lead through a cooperative agreement for the response action or may be the support agency in EPA-lead remedial response. [Section 300.515](/cfr/40/300.515.md) sets forth requirements for state involvement in EPA-lead remedial and enforcement response and also addresses comparable requirements for EPA involvement in state-lead remedial and enforcement response. [Section 300.520](/cfr/40/300.520.md) specifies requirements for state involvement in EPA-lead enforcement negotiations. [Section 300.525](/cfr/40/300.525.md) specifies requirements for state involvement in removal actions. In addition to the requirements set forth in this subpart, [40 CFR part 35](/cfr/40/part35.md), [subpart O](/cfr/40/subpartO.md), “Cooperative Agreements and Superfund State Contracts for Superfund Response Actions,” contains further requirements for state participation during response.

## Notes

### Source

Source: 55 FR 8853, Mar. 8, 1990, unless otherwise noted.

### Authority

Authority: 33 U.S.C. 1251 et seq.; 42 U.S.C. 9601-9657; E.O. 13626, 77 FR 56749, 3 CFR, 2013 Comp., p. 306; E.O. 12777, 56 FR 54757, 3 CFR, 1991 Comp., p. 351; E.O. 12580, 52 FR 2923, 3 CFR, 1987 Comp., p. 193.