280.4—What activities are not covered by this part?
This part does not apply to:
(c)
Postlease activities for mineral resources other than oil, gas, and sulphur, which are covered by regulations at 30 CFR part 282; and
(d)
G&G exploration or G&G scientific research activities related to oil, gas, and sulphur, including gas hydrates, which are covered by regulations at 30 CFR part 251.