According to the Regulations of People's Republic of China (PRC) Municipality on the Openness of Government Information, government departments should take the initiative to disclose government information, including the implementation of various government subsidy policies and the use of related funds. As a government subsidy policy to effectively protect the rights and interests of migrant workers, the publicity of migrant workers' transportation subsidies should also be regulated and supervised by law.
Therefore, the publicity of migrant workers' transportation subsidies belongs to the category of open government affairs, and the government should promptly disclose the implementation details, payment standards, use and other information of the subsidy policy to the public, so that the broad masses of workers can understand and enjoy the relevant rights and interests in time.