In the application process of self-built small cold storage on rural plots in Chongqing, it is necessary to submit an application to the local land and resources department, including the planning and design scheme of cold storage, land use scheme and other related materials. These materials need to explain in detail the construction scale, use, design drawings and other information of the cold storage. The applicant also needs to provide proof of private plots to prove his legal right to use the land. The applicant also needs to pay the corresponding application fee. The land and resources department will review the application materials and examine and approve them according to relevant laws and policies. If the application is approved, the applicant will get the land use right and can start building the cold storage.