( Is constructed of, or covered with, an opaque material (except for entrances and exits);
( Extends from no more than 12 inches above the ground or floor (which area at the bottom of the barrier must be covered with material that restricts visibility but may allow airflow) to at least 8 feet above the ground or floor (or to the ceiling); and
( Prevents persons outside the qualified adult-only facility from seeing into the qualified adult-only facility, unless they make unreasonable efforts to do so; and
( Any tobacco product advertising;
( A brand name other than in conjunction with words for an area or enclosure to identify an adult-only facility; or
( Any combination of words that would imply to a reasonable observer that the manufacturer, distributor, or retailer has a sponsorship that would violate §1140.34(c).
21 C.F.R. § 1140.16