Iowa Code § 166B.4

It is hereby recognized and declared that indemnification for destruction of swine infected with or exposed to hog cholera is an expression of the public policy of this state but employed only in the final stages of eradication of the disease, or as a means of preventing or minimizing its recurrence. The department of agriculture and land stewardship shall not therefore institute an initial program of indemnification pursuant to the chapter until it is mutually agreed between the state department of agriculture and land stewardship and the United States department of agriculture that such action is necessary in order to carry out the hog-cholera eradication program.