underground injection

(1) Underground injection .— The term “underground injection”— (A) means the subsurface emplacement of fluids by well injection; and (B) excludes— (i) the underground injection of natural gas for purposes of storage; and (ii) the underground injection of fluids or propping agents (other than diesel fuels) pursuant to hydraulic fracturing operations related to oil, gas, or geothermal production activities.


42 USC § 300h(d)(1)

Scoping language

For purposes of this part
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