Standardize the management of sand and gravel to prevent the loss of state-owned assets, and stipulate that sand and gravel produced by construction project excavation, hydropower station reservoir area or river dredging belong to state-owned assets, and no unit or individual may occupy them. Except for the self-use of the project, the surplus sand and gravel excavated within the project construction scope and during the construction period are allowed to be sold to the outside according to law.

Legal basis: Guiding Opinions on Promoting the Healthy and Orderly Development of Sandstone Industry (5) Strengthening the comprehensive management of illegal sand mining. Strengthen the supervision of the whole link and process of the sand and gravel industry, find hidden dangers as soon as possible, and improve the management system and norms. For unlicensed sand mining, unauthorized sand mining and other illegal sand mining activities, it is necessary to maintain a high-pressure situation, strengthen the implementation of convergence, and intensify the crackdown. Strictly control the sand mining activities in the middle and lower reaches of the Yangtze River, prevent the rebound of illegal sand mining in rivers, maintain the order of sand mining in the Yangtze River, and ensure the health of the Yangtze River. (The provincial people's government, the Ministry of Water Resources, the Ministry of Public Security, the Ministry of Ecology and Environment and the Ministry of Transport are responsible)