Task: songer_casetyp1_7-3-5

What follows is an opinion from a United States Court of Appeals.
Your task is to identify the issue in the case, that is, the social and/or political context of the litigation in which more purely legal issues are argued. Put somewhat differently, this field identifies the nature of the conflict between the litigants. The focus here is on the subject matter of the controversy rather than its legal basis.
Your task is to determine the specific issue in the case within the broad category of "economic activity and regulation - misc economic regulation and benefits". 

ORDER
Respondents’ motion to dismiss is granted. An EPA notice of violation is not reviewable because it is not a final agency action. See 42 U.S.C. § 7607(b)(1983); Union Electric Co. v. Environmental Protection Agency, 593 F.2d 299, 304-06 (8th Cir.1979); West Penn Power Co. v. Train, 522 F.2d 302, 310-11 (3d Cir.1975); see also Air California v. United States Department of Transportation, 654 F.2d 616, 620-21 (9th Cir.1981) (FAA letter warning of possible civil penalties not reviewable as non-final).

Question: What is the specific issue in the case within the general category of "economic activity and regulation - misc economic regulation and benefits"?
A. social security benefits (including SS disability payments)
B. other government benefit programs (e.g., welfare, RR retirement, veterans benefits, war risk insurance, food stamps)
C. state or local economic regulation
D. federal environmental regulation
E. federal consumer protection regulation (includes pure food and drug, false advertising)
F. rent control; excessive profits; government price controls
G. federal regulation of transportation
H. oil, gas, and mineral regulation by federal government
I. federal regulation of utilities (includes telephone, radio, TV, power generation)
J. other commercial regulation (e.g.,agriculture, independent regulatory agencies) by federal government
K. civil RICO suits
L. admiralty - personal injury (note:suits against government under admiralty should be classified under the government tort category above)
M. admiralty - seamens wage disputes
N. admiralty - maritime contracts, charter contracts
O. admiralty other
Answer:

Answer: D