While some have expressed concerns that the EHB benchmark plans required of states in establishing insurance exchanges will not provide adequate prescription drug coverage, a recent study of eight state benchmark plans by Avalere found that all plans analyzed covered a significant number of drugs in each class required by HHS, which is well beyond the proposed one drug per class minimum. While the study noted that there is wide variation among states, on average, the selected benchmark plans covered approximately 62 percent of the drugs available in the chosen classes. Avalere has also produced a map of overall state progress with regard to EHB benchmark submissions.