Manufacturers and importing distributors of malt or brewed beverages may include the names and addresses of all distributors and importing distributors to whom they sell in the locality covered by the advertising. No discrimination may be shown to one distributor or importing distributor over another, and where more than one distributor or importing distributor purchases the products from the manufacturer or importing distributor in the area covered by the advertisement, the names and addresses of all who purchase the product directly from the advertiser shall be displayed or mentioned in equal prominence. Where this is not done, none may be displayed or mentioned.
40 Pa. Code § 13.41