### Chinese: 根据通知，上述要求的时间范围为，从各省区市确定口岸城市范围并公告之日起，至2022年3月15日。
### English: According to the notice, the timeframe for the above requirements is from the date of determination of the port city scope and announcement by the municipalities of each province to March 15, 2022.
### Errors: There is a minor error at "of determination". There is a major error at "port city scope and announcement by". There is a major error at "municipalities of each province to March".

### Improved English: According to the notice, the time range of the aforementioned request is from the date when the province, autonomous region and city determine the scope of port cities and announce it until March 15, 2022.