Any participant that engages in an emergency natural gas transaction conducted in accordance with this subpart is exempt from the requirements of section 7 of the Natural Gas Act and the conditions of Sec. 284.10, except as provided in Sec. 284.266, and from the requirements of Sec. Sec. 284.7-284.9 and Sec. Sec. 284.11-284.13 of subpart A of this part. Participation in any emergency natural gas transaction will not subject any participant to the jurisdiction of the Commission under section 7 of the Natural Gas Act except to the extent such transaction is provided for in this subpart.