National Cotton Database

The USDA Agricultural Marketing Service (AMS) Cotton Program maintains a National Database (NDB) in Memphis, Tennessee for owner access to cotton classification data. The NDB is computerized telecommunications system which allows owners or authorized agents of owners to retrieve classing data from the current crop and/or the previous four crops. The NDB stores classing information from all 10 regional classing offices.

美国农业部市场服务局（USDA Agricultural Marketing Service，简称AMS）棉花项目在田纳西州孟菲斯维护了一个国家数据库（National Database，简称NDB），供业主查询棉花分类数据。该NDB是一个计算机化的电信系统，允许业主或经授权的代理人检索当前作物及其前四个作物的分类数据。NDB储存了来自所有十个区域分类办公室的分类信息。