Section 503.7 - State approval-general requirement for new powerplants(a) Where approvals by the appropriate State regulatory authority are required prior to the construction or use of a new powerplant, a petition for an exemption for consideration by OFE may be submitted to OFE prior to obtaining such approvals from the State regulatory authority.(b) An exemption granted for a powerplant shall not become effective until an adequate demonstration has been made to OFE that all applicable approvals required by the State regulatory authorities have been obtained.