Regulations last checked for updates: Oct 15, 2026

Title 40 - Protection of Environment last revised: Oct 13, 2026
§ 370.43 - What codes are used to report Tier I and Tier II inventory information?

(a) 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:

Table 1 to Paragraph (a)

Range codes Weight range in pounds
From To
01099
02100499
03500999
041,0004,999
055,0009,999
0610,00024,999
0725,00049,999
0850,00074,999
0975,00099,999
10100,000499,999
11500,000999,999
121,000,0009,999,999
1310,000,000(*)

* Greater than 10 million.

Note 1 to paragraph (a).

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.

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
source: 73 FR 65478, Nov. 3, 2008, as amended at 91 FR 37036, June 22, 2026, unless otherwise noted.
cite as: 40 CFR 370.43