---
kind: "section"
citation: "43 C.F.R. § 3175.121"
title: "43"
number: "3175.121"
heading: "Effective date of a spot or composite gas sample."
url: "https://uscodex.org/cfr/43/3175.121"
---

# §3175.121. Effective date of a spot or composite gas sample.

- (a) Unless otherwise specified on the gas analysis report, the effective date of a spot sample is the date on which the sample was taken.
- (b) The effective date of a spot gas sample may be no later than the first day of the production month following the operator's receipt of the laboratory analysis of the sample.
- (c) Unless otherwise specified on the gas analysis report, the effective date of a composite sample is the first of the month in which the sample was removed.
- (d) The provisions of this section apply only to OGORs, QTRs, and gas sample reports generated after January 17, 2017.

## Notes

### Source

Source: 81 FR 81609, Nov. 17, 2016, unless otherwise noted.

### Authority

Authority: 25 U.S.C. 396d and 2107; 30 U.S.C. 189, 306, 359, and 1751; and 43 U.S.C. 1732(b), 1733, and 1740.

### Source

Source: 81 FR 81421, Nov. 17, 2016, unless otherwise noted.