Do people traveling from the USA have to quarantine?

I’m convinced that in Taipei and NTC it is illegal to do quarantine at an airbnb at least. Is it now illegal in all over the country? I mean all the local governments are willing to appt the covid19 law to the guests?

目前新北市跟台北市都祭出眾罰,入住者、出租者皆罰3萬到100萬不等,她認為新竹市也應注意此防疫漏洞。

https://www.chinatimes.com/amp/realtimenews/20200331005983-260405

What Taichung gov said doesn’t sound guests are punished.

呼籲所有旅客,為了確保自身健康與安全,一定要慎選合法旅宿入住,千萬勿入住非法日租套房

https://www.taichung.gov.tw/1501841/post