Opinion for the Court filed by ROBB, Circuit Judge.
The appellant National Confectioners Association (NCA), a trade association of candymakers,1 appeals from a judgment of the District Court granting summary judgment to the Secretary of Health, Education and Welfare and the Commissioner of Food and Drugs (Collectively, FDA). We affirm.
The Association asked the District Court to declare void and to enjoin enforcement of portions of a Food and Drug Administration Regulation entitled “Cacao Products and Confectionary”, 21 C.F.R. § 128c (1976).2 The Association attacked the parts *37of the" Regulations that require candymakers (1) to mark each shipping container with a code that identifies the plant where the candy was packed and its production or packaging lot, 21 C.F.R. 128e.7(d) (1976),3 and (2) to keep records of the initial distribution of the candy for a period exceeding its shelf life but not more than two years, 21 C.F.R. § 128c.8(c), (d) (1976).4 According to the Association, the challenged requirements are in excess of statutory authority and arbitrary because the need for them is not supported by record evidence. The relevant statute is the Federal Food, Drug, and Cosmetic Act, 21 U.S.C. § 301 et seq.
The “Good Manufacturing Practice” Regulation at issue here was promulgated under authority granted to the Secretary of Health, Education and Welfare by section 701(a) of the Act, 21 U.S.C. § 371(a), “to promulgate regulations for the efficient enforcement of this [Act]”.5 The Act prohibits the “introduction or delivery for introduction into interstate commerce of any food . . . that is adulterated”, the “adulteration ... of any food in interstate commerce”, and the “receipt in interstate commerce of any food that is adulterated”. 21 U.S.C. § 331(a)-(c). The FDA intends that its Regulation will implement section 402(a)(4) of the Act, 21 U.S.C. § 342(a)(4), which states that:
A food shall be deemed to be adulterated—
* * * * * *
(4) if it has been prepared, packed, or held under insanitary conditions whereby
(1976). The general Good Manufacturing Practice regulation refers to source coding and distribution records but does not mandate them. 21 C.F.R. § 128.7(i) (1976).
it may have become contaminated with filth, or whereby it may have been rendered injurious to health .
The FDA justified the contested provisions of its Regulation in this way:
The Commissioner is of the opinion that the benefits to the consumer from [the record-keeping] requirements are clear. It would expedite the recall of dangerous or potentially dangerous products from the market. He considers the requirement to be a logical companion to the one for coding . . . and that it serves the same purpose in protecting the public health. The rapid identification of suspected food lots by their code marks together with a knowledge of the meaning of the code marks and a knowledge of their distribution can make a recall much easier and faster and thus result in increased consumer protection.
40 Fed.Reg. 24,169 at ¶ 92 (1975).
STATUTORY BASIS FOR THE CONTESTED PROVISIONS OF THE REGULATION
The Association’s argument rests on this premise: because the FDA has cited section 402(a)(4) as the substantive basis for its Regulation, that section alone must provide the statutory justification for the Regulation. The Association asserts that previous judicial and administrative interpretations of section 402(a)(4) indicate that Congress intended it to control the physical processes of manufacture, to prevent contaminated foods from entering commerce. By con*38trast, the mandatory coding and record-keeping provisions contemplate a remedy for contaminated foods already in commerce, by expediting their location and removal. Therefore, the Association concludes, these provisions are alien to the settled meaning of section 402(a)(4). Stressing the distinction it draws between prevention and remedy,6 the Association observes that the contested provisions would permit criminal prosecution under section 402(a)(4) of a manufacturer, whose processes are sanitary but whose source coding and distribution records are deficient, for having “prepared, packed, or held [food] under insanitary conditions . whereby it may have been rendered injurious to health”. Criminal liability for such conduct, says the Association, would distort the language of section 402(a)(4) impermissibly. Finally, the Association states that the FDA, by justifying the contested provisions on a need to expedite “recalls”7 of adulterated foods, has clearly exceeded its statutory authority, because recalls are voluntary actions by manufacturers. Recalls are not among the remedial alternatives given to the FDA in the Act8 and therefore, the Association concludes, not subject to regulation by the FDA.
We believe that the Association’s analysis of the FDA’s statutory authority is unreasonably cramped. At the outset we must reject the Association’s contention that the validity of the contested provisions must stand or fall on section 402(a)(4) alone. There is no persuasive evidence that Congress intended to immunize food manufacturers from mandatory source coding and record-keeping.9 Therefore, in assessing the validity of regulations promulgated under section 701(a) for the efficient enforcement of the Act, we must consider “whether the statutory scheme as a whole justified promulgation of the regulation.” Toilet Goods Ass’n v. Gardner, 387 U.S. 158, 163, 87 S.Ct. 1520, 1524, 18 L.Ed.2d 697 (1967). The consideration concerns “not merely an inquiry into statutory purpose” but also practicalities, such as “an understanding of what types of enforcement problems are encountered by the FDA [and] the need for various sorts of supervision in order to effectuate the goals of the Act.” Id. at 163-64, 87 S.Ct. at 1524. “The Act is not concerned with the purification of the stream of commerce in the abstract. The problem is a practical one of consumer protection, not dialectics.” United States v. Urbuteit, 335 U.S. 355, 357-58, 69 S.Ct. 112, 114, 93 L.Ed. 61 (1948).
Turning to the relevant aspects of the statutory scheme, we find that if a unit of food in fact contains contaminants that render it “injurious to health”, 21 U.S.C. § 342(a)(1), that are “filthy, putrid, or decomposed substancefs]” present in signifi*39cant quantity10 or that make it “otherwise unfit for food”, 21 U.S.C. § 342(a)(3), it is “adulterated”. Moreover, if a unit of food is processed, packed, or stored under unsanitary conditions whereby it may have become contaminated or rendered injurious to health, it is “adulterated” in the eyes of the law even though it is not actually contaminated. 21 U.S.C. § 342(a)(4); Berger v. United States, 200 F.2d 818, 821 (8th Cir. 1952). The Act prohibits interstate commerce in adulterated foods. 21 U.S.C. § 331(a)-(c). It permits the FDA to petition a district court to enjoin such commerce. 21 U.S.C. § 332(a). Most important, it permits the FDA to stop interstate commerce in adulterated food by obtaining a court order to seize it:
Any article of food . . . that is adulterated . . . when introduced into or while in interstate commerce or while held for sale (whether or not the first sale) after shipment in interstate commerce . . . shall be liable to be proceeded against while in interstate commerce, or at any time thereafter, on libel of information and condemned .
21 U.S.C. § 334(a)(1).
In light of this statutory scheme as a whole, we find no basis for the Association’s distinction between the FDA’s roles in preventing and remedying commerce in adulterated foods. In our opinion the Act imposes on the FDA an equal duty to perform each role. We conclude that the FDA’s purposes in enacting the contested provisions of its Regulation, which were “to prevent the introduction of adulterated foods into [interstate] commercial channels”, 40 Fed.Reg. 24,162 (1975), and to hasten their removal from circulation once there, id. at 24,169, reflect the objective of the Act and carry out its mandate. See Ewing v. Mytinger & Casselberry, Inc., 339 U.S. 594, 601, 70 S.Ct. 870, 94 L.Ed. 1088 (1950); United States v. 7 Barrels of Spray Dried Whole Eggs, 141 F.2d 767, 770 (7th Cir. 1944). See also United States v. Lexington Mill & Elevator Co., 232 U.S. 339, 409, 34 S.Ct. 337, 58 L.Ed. 658 (1914) (interpretation of predecessor statute).11
We think the FDA has reason to believe that source coding and the keeping of distribution records will expedite locating and removing adulterated food in two situations: (1) when one unit of a packaging or production lot already in commerce is found to be adulterated, and the other units in the same lot need to be found and removed; and (2) when a plant where food already in interstate commerce was processed is found to be unsanitary, and the plant’s recent production needs to be found and removed. Coding will also facilitate segregation of an adulterated lot that is in a manufacturer’s warehouse.
The Association and the FDA agree that when it is suspected that candy is adulterated, its manufacturer customarily recalls it in order to avoid condemnation proceedings under the seizure provision of the Act. We may assume that recalls are completely voluntary because the FDA does not have authority to mandate them, United States v. C.E.B. Products, Inc., 380 F.Supp. 664, 672 (N.D.Ill.1974). Nonetheless we believe that the voluntary nature of recalls does not foreclose their regulation. When accommodation between the FDA *40and private industry has produced an efficient procedure for enforcing the Act, and when that procedure emphasizes voluntary cooperation in lieu of a more disruptive and cumbersome remedy specifically authorized by the Act, the FDA may regulate the procedure of voluntary cooperation. Moreover, it is proper for the FDA to conclude that it cannot rely exclusively on voluntary compliance to protect the public interest. Regulations that require source codes and distribution records may be based legitimately on the need to expedite seizure when voluntary recalls are refused.
In any case, the regulation must be consistent with Congressional intent and the substantive provisions of the whole statute. Section 701(a) is not a license for expansion of the FDA’s regulatory authority based on fanciful interpretations of the substantive portions of the Act. In our opinion however the coding and record-keeping requirements here at issue clearly do not distend the scope of regulation authorized by the Act.
ARBITRARINESS
As we have seen, the FDA justified its mandatory coding and record-keeping provision on the ground that they would expedite the recall of adulterated food.12 The Association complains that there is no evidence in the record to show (1) that recalls.as presently conducted are not fast enough, and (2) that codes and records will make recalls faster. The FDA’s position is that when the public health may be at stake, the fastest approach is the best one, and that when manufacturers are required to set up the means of tracing adulterated food, it is likely that the full lot of adulterated food will be located more accurately and removed more quickly. We believe that this is a rational justification for the contested provisions. A regulation that is self-evidently rational is not less legitimate than a regulation whose rationality must depend on elaborate statistical, expert, or other evidence.
The judgment of the District Court is
Affirmed.