(a) In delegating implementation and enforcement authority to a State under Sec. 111(c) of the Act, the authorities contained in paragraph (b) of this section shall be retained by the Administrator and not transferred to a State.
(b) Authorities which will not be delegated to States: Sec. 60.663(e). Subpart OOO_Standards of Performance for Nonmetallic Mineral Processing
Plants
Source: 74 FR 19309, Apr. 28, 2009, unless otherwise noted.