; and (2) a single category for beverage containers. (e) Inapplicability of antitrust laws The antitrust laws (as defined in the first section of the Clayton Act ( 15 U.S.C. 12 )) shall not apply to a producer or Organization that carries out any activity in accordance with an approved Plan if the activity is necessary to develop and implement the Plan. (f) Regulations Not later than 1 year after the date of enactment of this subtitle, the Administrator shall promulgate such regulations as the Administrator determines to be necessary to implement, administer, and enforce this part, including methods and processes for— (1) collecting information necessary to ensure an accurate baseline under section 12105(b); and (2) determining compliance with the requirements of this part. 12102. Producer Responsibility Organizations (a) Participation (1) In general For each category of covered products or beverage containers sold, distributed, or imported into the United States by a producer, the producer shall establish a new, or join an existing, Producer Responsibility Organization. (2) Multiple Organizations A producer may participate in— (A) more than 1 Organization, if each Organization is established for a different category of covered products or beverage containers subject to the responsibility of the producer; but (B) (i) only 1 national Organization with respect to each category of covered products; (ii) only 1 national Organization with respect to beverage containers