### 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 above requirements for the time frame, from the date of the provinces and municipalities to determine the scope of the port city and the announcement, until March 15, 2022.
### Errors: There is a major error at "the above requirements for the time frame, from the date of the provinces and municipalities to determine the". There is a major error at "scope of the port city and the announcement, until".

### 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.