smokable hemp and hemp-derivative products for use as a tobacco substitute, including CBD derived from hemp with a delta-9 tetrahydrocannabinol (THC) concentration of not more than 0.3 percent on a dry weight basis; Electronic cigarettes; Oral vaporizers for smokers; Smokers' oral vaporizer refill cartridges sold empty; Electronic cigarette atomizers sold empty; Electronic cigarette refill cartridges sold empty; Component parts of electronic cigarettes in the nature of tanks for electronic cigarettes, coils for electronic cigarettes, drip tips for electronic cigarettes, tank tubes for electronic cigarettes, and silicone rings for electronic cigarettes