Under the Clean Air Act, standards for allowable pollution are permanently set, subject to Congress's revision of the statute. A) Under the Clean Air Act, standards for allowable pollution are permanently set, subject to Congress's revision of the statute.
B) Under the Clean Air Act, standards for allowable pollution are set by individual states and can be changed by state legislatures.
C) Under the Clean Air Act, standards for allowable pollution can be revised by the Environmental Protection Agency (EPA) based on scientific evidence and public input.
D) under the Clean Air Act, standards for allowable pollution are determined by industry stakeholders and are not subject to change.