---
kind: "section"
citation: "40 C.F.R. § 147.1153"
title: "40"
number: "147.1153"
heading: "Existing Class II disposal wells authorized by rule in Indian country."
url: "https://uscodex.org/cfr/40/147.1153"
---

# §147.1153. Existing Class II disposal wells authorized by rule in Indian country.


The owner or operator shall limit injection pressure to the lesser of:

- (a) A value which will not exceed the operating requirements of § [144.28(f)(3)(i)](/cfr/40/144.28.md?p=f-3-i) or [(ii)](/cfr/40/144.28.md?p=f-3-ii) of this chapter as applicable; or
- (b) **A value for well head pressure calculated by using the following formula—**

## Notes

### Amendments

[87 FR 45256, July 28, 2022]

### Authority

Authority: 42 U.S.C. 300f et seq.; and 42 U.S.C. 6901 et seq.

### Source

Source: 49 FR 20197, May 11, 1984, unless otherwise noted.

### Amendments

[87 FR 45256, July 28, 2022]