---
kind: "section"
citation: "18 C.F.R. § 154.310"
title: "18"
number: "154.310"
heading: "Zones."
url: "https://uscodex.org/cfr/18/154.310"
---

# §154.310. Zones.


If the company maintains records of costs by zone, and proposes a zone rate methodology based on these costs, the statements and schedules in [§ 154.312](/cfr/18/154.312.md) and [§ 154.313](/cfr/18/154.313.md) must reflect costs detailed by zone.


## Notes

### Authority

Authority: 15 U.S.C. 717-717w; 31 U.S.C. 9701; 42 U.S.C. 7102-7352.

### Source

Source: Order 582, 60 FR 52996, Oct. 11, 1995, unless otherwise noted.