[url=https://aspe.hhs.gov/basic-report/affordable-care-act-coverage-implications-and-issues-immigrant-families]https://aspe.hhs.gov/basic-repor ... -immigrant-families[/url]
Lawfully present immigrants with five years or less of US residency, without access to employer sponsored insurance, will be able to receive both premium tax credits and cost sharing tax credits towards approved plans that meet the essential benefits package outlined in the ACA.

5年绿卡老人的确是mediaid和medicare都不能用，但是o8明确写了不是public benefits，甚至要向本州政府证实申请人的确不符合mediaid才可以在marketplace上买premium tax credit的商业保险。

各个州的情况也许不同，但是我觉得LZ说的2，3不对，请指教，也不要误导后面进来的同学。