USPS blocking shipments of unregulated vapes: 'Your local office will not accept any packages' al.com California's ban on most flavored tobacco effective Wednesday CBS Los Angeles Maryland is the first state to ban flavored disposable e cigarettes. SBX Vapes: Attorney Legal Review of FDA and State Regulations Denver's Flavor Ban Deserves Repeal: Data, Not Dogma, Should Drive Policy New study finds disposable vaping devices more toxic than traditional cigarettes