18 CFR §284.505

1. (a)Any storage service provider seeking market-based rates for storage capacity, pursuant to the authority of section 4(f) of the Natural Gas Act, related to a specific facility put into service after August 8, 2005, may apply for market-based rates by complying with the following requirements:
   1. (1)The storage service provider must demonstrate that market-based rates are in the public interest and necessary to encourage the construction of the storage capacity in the area needing storage services; and
   2. (2)The storage service provider must provide a means of protecting customers from the potential exercise of market power.
2. (b)Any storage service provider seeking market-based rates for storage capacity pursuant to this section will be presumed by the Commission to have market power.