FERC Order 490 was a final rule by the Federal Energy Regulatory Commission to amend its regulations concerning the abandonment of certain sales and purchases of natural gas under Section 7(b) the Natural Gas Act (NGA) where the underlying contract has expired. It was enacted on April 12, 1988.[1] The following year, an environment of more deregulation took place with the enactment of Natural Gas Wellhead Decontrol Act of 1989.[2]