---
kind: "section"
citation: "18 C.F.R. § 284.504"
title: "18"
number: "284.504"
heading: "Standard requirements for market-power authorizations."
url: "https://uscodex.org/cfr/18/284.504"
---

# §284.504. Standard requirements for market-power authorizations.

- (a) Applicants granted the authority to charge market-based rates under [§ 284.503](/cfr/18/284.503.md) that provide cost-based service(s) must separately account for all costs and revenues associated with facilities used to provide the market-based services. When it files to change its cost-based rates, applicant must provide a summary of the costs and revenues associated with market-based rates with applicable cross references to §§ [154.312](/cfr/18/154.312.md) and [154.313](/cfr/18/154.313.md) of this chapter. The summary statement must provide the formulae and explain the bases used in the allocation of common costs between the applicant's cost-based services and its market-based services.
- (b) A storage service provider granted the authority to charge market-based rates under [§ 284.503](/cfr/18/284.503.md) is required to notify the Commission within 10 days of acquiring knowledge of significant changes occurring in its market power status. Such notification should include a detailed description of the new facilities/services and their relationship to the storage service provider. Significant changes include, but are not limited to:
  - (1) The storage provider expanding its storage capacity beyond the amount authorized in this proceeding;
  - (2) The storage provider acquiring transportation facilities or additional storage capacity;
  - (3) An affiliate providing storage or transportation services in the same market area; and
  - (4) The storage provider or an affiliate acquiring an interest in or is acquired by an interstate pipeline.

## Notes

### Source

Source: Order 678, 71 FR 36636, July 27, 2006, unless otherwise noted.

### Authority

Authority: 15 U.S.C. 717-717z, 3301-3432; 42 U.S.C. 7101-7352; 43 U.S.C. 1331-1356.

### Source

Source: Order 46, 44 FR 52184, Sept. 7, 1979, unless otherwise noted.