40 CFR § 370.43 - What codes are used to report Tier I and Tier II inventory information?
---
identifier: "/us/cfr/t40/s370.43"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 370.43 - What codes are used to report Tier I and Tier II inventory information?"
title_number: 40
title_name: "Protection of Environment"
section_number: "370.43"
section_name: "What codes are used to report Tier I and Tier II inventory information?"
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "J"
subchapter_name: "SUPERFUND, EMERGENCY PLANNING, AND COMMUNITY RIGHT-TO-KNOW PROGRAMS"
part_number: "370"
part_name: "HAZARDOUS CHEMICAL REPORTING: COMMUNITY RIGHT-TO-KNOW"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "Sections 302, 311, 312, 322, 324, 325, 327, 328, and 329 of the Emergency Planning and Community Right-To-Know Act of 1986 (EPCRA) (Pub. L. 99-499, 100 Stat. 1613, 42 U.S.C. 11002, 11021, 11022, 11042, 11044, 11045, 11047, 11048, and 11049)."
regulatory_source: "73 FR 65478, Nov. 3, 2008, unless otherwise noted."
cfr_part: "370"
---
# 370.43 What codes are used to report Tier I and Tier II inventory information?
(a) *Weight range codes.* Except as provided in paragraph (b) of this section, you must use the following codes to report the maximum amount and average daily amount when reporting Tier I or Tier II inventory information:
| | | |
| --- | --- | --- |
| 01 | 0 | 99 |
| 02 | 100 | 499 |
| 03 | 500 | 999 |
| 04 | 1,000 | 4,999 |
| 05 | 5,000 | 9,999 |
| 06 | 10,000 | 24,999 |
| 07 | 25,000 | 49,999 |
| 08 | 50,000 | 74,999 |
| 09 | 75,000 | 99,999 |
| 10 | 100,000 | 499,999 |
| 11 | 500,000 | 999,999 |
| 12 | 1,000,000 | 9,999,999 |
| 13 | 10,000,000 | (*) |
| * Greater than 10 million | | |
To convert gas or liquid volume to weight in pounds, multiply by an appropriate density factor.
(b) Your SERC or LEPC may provide other range codes for reporting maximum amount and average daily amount, or may require reporting of specific amounts. You may use your SERC's or LEPC's range codes (or specific amounts) provided the ranges are not broader than the ranges in paragraph (a) of this section.
[77 FR 41315, July 13, 2012]