The National Immigration Administration (NIA) of China announced today (May 11) further optimization of immigration-related policies from May 15, including facilitating the travel between Chinese mainland and Hong Kong and Macao special administrative regions and resuming service of previously expedited customs clearance. 

 
The optimized measures include resumptions of group tour applications for residents in Hong Kong and Macao special administrative regions. 
 
Chinese mainland residents may submit their application for group tour visas to visit Hong Kong and Macao at any public security offices in the mainland. 
 
The measures also include a nationwide scheme to handle applications to visit family relatives, and to work and study in Hong Kong and Macao. 
 
It also prolonged the validity period of stay for mainland students in Macao. For mainland students studying in Macao-based universities the validity period of the stay visa will be adjusted from one year to the length needed to complete their study in Macao. 
 
Expedited customs clearance at ports will be resumed. The measures extended the range of group that can enjoy quick customs clearance at ports in accordance with pre-pandemic practices. 

The official Notice from the National Immigration Administration (Chinese only)  https://www.nia.gov.cn/n741440/n741542/c1579892/content.html 

The official Policy Interpretation (Q&A) from the National Immigration Administration (Chinese only)   https://www.nia.gov.cn/n741440/n741577/c1579923/content.html