---
kind: "section"
citation: "40 C.F.R. § 147.3012"
title: "40"
number: "147.3012"
heading: "Construction requirements for Class I wells."
url: "https://uscodex.org/cfr/40/147.3012"
---

# §147.3012. Construction requirements for Class I wells.


In addition to the cementing requirement of [§ 146.12(b)](/cfr/40/146.12.md?p=b) of this chapter, owners and operators of Class I wells shall, through circulation, cement all casing to the surface.


## Notes

### Source

Source: 53 FR 43104, Oct. 25, 1988, unless otherwise noted.

### 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.