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7 U.S. Code § 4817 - Preemption

(a) Promotion and consumer education; funds from pork producersThis chapter is intended to occupy the field of—
promotion and consumer education involving pork and pork products; and
obtaining funds therefor from pork producers.
(b) Additional or different State regulation prohibited

The regulation of such activity (other than a regulation or requirement relating to a matter of public health or the provision of State or local funds for such activity) that is in addition to or different from this chapter may not be imposed by a State.

(c) Application of section

This section shall apply only during a period beginning on the date of the commencement of the collection of assessments under section 4809 of this title and ending on the date of the termination of the collection of assessments under section 4811(a)(3) or 4811(b)(1)(B) [1] of this title.

[1]  So in original. Probably should be “ or 4812(b)(1)(B)”.
Statutory Notes and Related Subsidiaries
Effective Date

Section effective Jan. 1, 1986, see section 1631 of Pub. L. 99–198, set out as a note under section 4801 of this title.