43 CFR §3175.121

1. (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.
2. (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.
3. (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.
4. (d)The provisions of this section apply only to OGORs, QTRs, and gas sample reports generated after January 17, 2017.