From the beginning of July, residents from a number of countries worldwide will be allowed to enter Việt Nam using e-visas.
A pilot programme to monitor emissions from motorbikes was launched on May 15 by the HCM City Department of Transport.
Việt Nam is facing an uphill battle to control tuberculosis (TB), with about 174,000 people in the country contracting the disease each year and 13,000 fatalities.
There is a drive to make sure that the Earth stops becoming too warm. To help achieve this, the capital city plans to keep a close watch on things like fires being burnt.